將PM-160添加到STEP7的組態(tài)頁面后，可以插入相應(yīng)的數(shù)據(jù)塊進(jìn)行映像區(qū)地址映射。PM-160提供的數(shù)據(jù)塊如下：
圖13 PM-160提供的數(shù)據(jù)塊
RAC3.5推動需要的輸入輸出數(shù)據(jù)塊到網(wǎng)關(guān)對應(yīng)的槽位。如下圖所示，將數(shù)據(jù)塊“24Words Input，24Words Output”拖動到Profibus-DP從站地址為3的PM-160的槽位中，此時，對應(yīng)的映射區(qū)地址分別為256，PLC程序需通過PIW256（PIB256）或者PQW256（PQB256）對相應(yīng)的數(shù)據(jù)進(jìn)行尋址訪問。
圖14 PLC映像區(qū)起始地址（命令配置）
四、 RAC3.5數(shù)據(jù)讀寫
1、DCS讀寫PLC數(shù)據(jù)
DCS作為Modus主站通過PM-160讀寫PLC數(shù)據(jù)，使用04H功能碼讀數(shù)據(jù)，對應(yīng)的寄存器起始地址為0H（30001H），使用10H（03H）功能碼寫數(shù)據(jù)，對應(yīng)的寄存器起始地址為0H（40001H）。
2、PLC讀寫現(xiàn)場智能儀表數(shù)據(jù)
1) PLC讀寫Modbus從站設(shè)備數(shù)據(jù)
PLC通過PM-160發(fā)送Modbus主站指令讀寫現(xiàn)場串口設(shè)備數(shù)據(jù)。映像區(qū)起始地址和網(wǎng)關(guān)內(nèi)存映射起始地址對應(yīng)關(guān)系如下：以圖14中的配置為例。
圖15 PLC通過PM-160讀寫Modbus從站設(shè)備數(shù)據(jù)地址對應(yīng)關(guān)系
2) PLC讀寫非標(biāo)串口設(shè)備數(shù)據(jù)
PLC的輸入映射區(qū)前兩個字節(jié)分別表示接收的串口數(shù)據(jù)長度和事務(wù)序列號，其它為接收到的數(shù)據(jù)。事務(wù)序列號變化，表示接收到了一幀新的串口數(shù)據(jù)。其中，可通過配置軟件設(shè)置是否開啟串口數(shù)據(jù)長度功能。PLC的輸出映射區(qū)前兩個字節(jié)分別表示發(fā)送的串口數(shù)據(jù)長度和事務(wù)序列號，其它為要發(fā)送的串口數(shù)據(jù)。事務(wù)序列號變化，PLC發(fā)送相應(yīng)長度的串口數(shù)據(jù)。
五、 結(jié)束語
在該系統(tǒng)中，Modbus轉(zhuǎn)Profibus-DP網(wǎng)關(guān)PM-160扮演了三種角色：建立Modbus主站和Profibus-DP主站之間的連接通信（Modbus主站模式）；建立Modbus從站和Profibus-DP主站之間的連接通信（Modbus從站模式）；建議非標(biāo)串口設(shè)備和Profibus-DP主站之間的連接通信（通用模式）。自本通信系統(tǒng)運(yùn)行以來，整個系統(tǒng)通訊正常，有效保證了整個水利工程控制系統(tǒng)的正常運(yùn)行。使用上海泗博自動化的Modbus轉(zhuǎn)Profibus-DP網(wǎng)關(guān)可以極大地方便自動化工業(yè)現(xiàn)場的控制和操作。
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RAC3.5
RAC2.1
RAC1.2-250-380-A00-W1
RAC2.2-200-450-AP0-W1
RAC2.3-200-380-A00-300A
RAC3.1-150-460-AP0-W1-220
RAC3.1-150A
RAC3.5-150-460-A-OI-Z1-220
RAC3.5-150-460-L-00-WI
RAC3.5-150-460-A-0I-W1
RAC3.5-150-460-A-00
RAC3.5-150-460
RAC3.1-150-460-A-00
RAC2.2-250-460-A-00-WI
RAC2.2-200-460-A-00-W1
RAC2.2-200-460
RAC2.2-150-460-A-OO-WI
RAC2.2-150-460
RAC2.1-200-380A
RAC2.1-150-380-A00-W1
RAC2.1-150-380
RAC3.5-150-460-A00-W12
RAC2.2-150-380-A00-W1
RAC2.2-150-460-A00-W1
RAC2.2-200-380-A00-W1
RAC2.2-200-460-D00-W1
RAC2.2-250-380-A00-W1
RAC2.2-250-460-AP0-W1
RAC2.2-200-380-A00-Z1
RAC2.2-250-380-A00-Z1
RAC2.2-150-460-A00-Z1
RAC2.2-200-460-A00-Z1
RAC2.2-250-460-A00-Z1
RAC2.2-200-380-AP0-W1
RAC2.2-200-460-A00-W1
RAC2.2-250-460-A00-W1
RAC2.2-200-460-AP0-W1
RAC2.2-250-380-API-W1
RAC2.2-200-460-APD-W1
RAC2.2-150-380-AP0-W1
RAC2.2-200-380-A0I-W1
RAC2.2-150-380-A0I-W1
RAC2.2-250-380-A0I-W1
RAC3.1-100-460-A00-W1-220
RAC3.1-100-460-AP0-W1-220
RAC3.1-100-460-APD-W1-220
RAC3.1-100-460-A00-Z1-220
RAC3.1-150-460-A00-Z1-220
RAC3.1-100-460-API-W1-220
RAC3.1-100-460-A0I-W1-220
RAC3.1-100-460-D00-W1-220
RAC3.1-150-460-A00-W1-220
RAC3.1-150-460-AP0-W1-220
RAC3.1-150-460-APD-W1-220
RAC3.1-150-460-API-W1-220
RAC3.1-150-460-A0I-W1-220
RAC3.1-150-460-D00-W1-220
RAC2.2-250-380-A0S-W1
RAC2.2-200-380-A0S-W1
RAC3.1-150-460-A0S-W1-220
RAC2.2-150-380-A0D-W1
RAC2.2-250-380-A0I-Z1
RAC3.5-100-460-A00-W1-220
RAC3.5-150-460-A00-Z1-220
RAC3.5-100-460-A01-W1-220
RAC4.3-400-460-AP0-W1
RAC3.5-150-460-A00-W1-220
RAC3.5-150-460-A00-Z1-220
RAC3.5-150-460-A0I-W1-220
RAC3.1-150-460-100-W1-220
RAC2.1-150-460-A0I-W1-220
RAC3.5-200-460-L00-Z1-220
RAC3.6-150-460-L00-Z1-2
RAC2.3-250-460-L00-W1
RAC2.3-200-460-L00-W1
RAC2.2-200-460-A00-W1
RAC2.2-200-460-L00-W1
RAC3.5-200-460-L00-W1-220
RAC3.5-150-460-L00-W1-220
RAC3.1-150-460-A0I-Z1-220
RAC3.5-150-460-A01-W1-220
256047-02738-A04
256047-02738-A04
234271-10388-A06
232705-16726-A01
233303-05614-A05
BENTLY NEVADA 30000-00-72-12-00 USPP 3000000721200
BENTLY NEVADA 300-00-00-32-18-02 NSPP 3000000321802
BENTLY NEVADA 300-00-00-75-18-01 USPP 3000000751801
BENTLY NEVADA 90200-22-03-01-02-02-01-01-02 USPP 9020022030102020
BENTLY NEVADA 90225-22-02-01-01-02-02-01-01-00 USPP 9022522020101020
BENTLY NEVADA 90225-23-03-05-01-02-02-03-01-02 USPP 9022523030501020
BENTLY NEVADA 90225-23-03-05-02-02-02-03-01-02 USPP 9022523030502020
BENTLY NEVADA 90225-24-02-01-01-02-02-01-02-03 USPP 9022524020101020
BENTLY NEVADA 90225-22-02-01-01-02-02-01-01-02 USPP 902252202010102B
BENTLY NEVADA PWA90482-01 USPP PWA9048201
BENTLY NEVADA 90200-03-01-02-02-01-01-02 USPP 9020003010202010
BENTLY NEVADA 16699-20-05-03 NSPP 16699200503
BENTLY NEVADA 170180-03-00 NSFP 1701800300
Bently Nevada 3300/15 Dual Vibration Monitor 3300/15-03-01-01-00-00-00 78392-01
Bently Nevada 3500/42M Proximitor Seismic Monitor PLC Module 140734-02 3500 42 M
BENTLY NEVADA PWA47620-02 POSITION MONITOR PCB CIRCUIT BOARD H B337541
BENTLY NEVADA PWA47576-02 VIBRATION MONITOR PCB CIRCUIT BOARD J B337540
BENTLY NEVADA PWA46851-02 DUAL VIBRATION MONITOR PCB CIRCUIT BOARD N B337535
BENTLY NEVADA 3300/03-01-00 SYSTEM VIBRATION MONITOR
BENTLY NEVADA CONTROL MODULE VIBRATION MONITOR 7285201
Bently Nevada 12 Slot Rack / Chassis 79612-01 System 3300 PLC Bentley PWA79612
Bently Nevada TK-80 Testing Device FREE SHIP USA
BENTLY NEVADA VIBRATION MONITOR 72200-04-04-01-04-01-15 NEW IN BOX
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BENTLY NEVADA RAMP DIFF EXP MONITOR 72645-06-02-01-03-01-01-15-30 NEW
BENTLY NEVADA 19000-20-34-36-02 NSFP 1900020343602
BENTLY NEVADA 19048-00-60-05-02 NSFP 1904800600502
BENTLY NEVADA 21501-00-12-10-02 NSPP 2150100121002
BENTLY NEVADA 5075-10 USPP 507510
BENTLY NEVADA 3001-28-42-36-02 USPP 300128423602
BENTLY NEVADA 30000-00-73-18-02 USPP 3000000731802
BENTLY NEVADA 3000-00-08-18-02 USPP 300000081802
BENTLY NEVADA 30001-00-34-18-02 USPP 3000100341802
BENTLY NEVADA 30000-00-23-18-02 USPP 3000000231802
BENTLY NEVADA 30000-00-23-36-02 USPP 3000000233602
BENTLY NEVADA 30000-00-51-18-02 USPP 3000000511802
BENTLY NEVADA 30000-00-60-36-02 USPP 3000000603602
BENTLY NEVADA 30001-08-30-36-02 USPP 3000108303602
BENTLY NEVADA 300-00-00-08-12-02 USPP 3000000081202
BENTLY NEVADA 30000-00-08-36-02 USPP 3000000083602
BENTLY NEVADA 300-00-00-38-18-02 USPP 3000000381802
BENTLY NEVADA 30001-12-35-36-02 USPP 3000112353602
BENTLY NEVADA 30000-00-12-18-02 USPP 3000000121802
BENTLY NEVADA 30000-18-32-36-02 USPP 3000018323602
BENTLY NEVADA 30000-00-40-18-02 USPP 3000000401802
BENTLY NEVADA 2789-084 USPP 2789084
BENTLY NEVADA 28400-10-25-36-02 USPP 2840010253602
BENTLY NEVADA 30000-00-13-18-02 USPP 3000000131802
BENTLY NEVADA 1900-00-20-12-02 USPP 190000201202
BENTLY NEVADA 7736-12 USPP 773612
BENTLY NEVADA 30000-00-18-18-02 USPP 3000000181802
BENTLY NEVADA 30000-00-13-36-02 USPP 3000000133602
BENTLY NEVADA 28400-00-10-36-02 USPP 2840000103602
USED Bently Nevada 2201/-03-03 4 Channel Monitor
Bently Nevada 3300/16 Dual Vibration Monitor
NEW BENTLY NEVADA 330854-040-25-05 3300 XL 25MM PROXIMITY SENSOR CABLE B448607
NEW BENTLY NEVADA 21504-000-048-05-02 PROXIMITY PROBE SENSOR D365265
NEW BENTLY NEVADA 991-25-50-01-00 2-WIRE TRANSMITTER P3403893-00355 99125500100
Bently Nevada 3300 Power Supply 3300/11-01-02-00 330011010200 Used
BENTLY NEVADA 3500/60 TEMPERATURE MONITOR NEW
Bently Nevada Velomitor 330500-01-00 Piezo-Velocity Sensor Probe - NEW
Bently Nevada 3500/92 136180-01 Communication Gateway Module 13618001 SAR
Bently Nevada 3300/25-05-13-15-00-01-03-00 dual accelerometer
Bently Nevada 24000-01-00 Digital Vector Filter $699
BENTLY NEVADA KEYPHASOR MODULE 3500/25 (2-CHANNEL)
Bently Nevada 3500/53 Overspeed Detection I/O Module Free USA Ship New
BENTLY NEVADA 90225-22-04-06-02-02-02-03-01-02 USPP 9022522040602020
BENTLY NEVADA 90225-22-04-06-02-02-02-03-03-04 USPP 902252204060202B
BENTLY NEVADA 3300/20-12-01-01-00-02 USPP 3300201201010002
BENTLY NEVADA 84140-01 NSPP 8414001
BENTLY NEVADA 76683-90 USPP 7668390
BENTLY NEVADA 72836-01 USPP 7283601
BENTLY NEVADA 72869-02 USPP 7286902
BENTLY NEVADA 72870-01 USPP 7287001
BENTLY NEVADA 72870-03 USPP 7287003
BENTLY NEVADA 72358-XX USPP 72358XX
BENTLY NEVADA 72870-53 USPP 7287053
BENTLY NEVADA 30000-00-38-36-02 USPP 3000000383602
BENTLY NEVADA 30000-00-40-36-02 USPP 3000000403602
NEW BENTLY NEVADA 330500-01-00 100MV/IN/S VELOMITOR PROBE SENSOR B326535
NEW BENTLY NEVADA 330500-01-00 100MV/IN/S VELOMITOR PROBE SENSOR D327389
Bently Nevada 3500/40M Proximitor Monitor
BENTLY NEVADA 21504-000-008-10-02 NSFP 215040000081002
NEW BENTLY NEVADA 90041-01 RELAY MODULE 12V-DC PCB CIRCUIT BOARD B395889
BENTLY NEVADA 125768-01 RACK INTERFACE I/O MODULE (210-2)
BENTLY NEVADA 128229-01 PROX/SEISMIC I/O MODULE (210-2)
BENTLY NEVADA 72626-22 NSPP 7262622
Bently Nevada 3300/01-01-00 System Monitor
Bently Nevada 3300 XL NSv Proximitor Sensor 330980-70-00
BENTLY NEVADA 330180-91-05 NSFP 3301809105
BENTLY NEVADA 21504-062-096-05-02 NSFP 215040620960502
Bently Nevada 3500/50 Tachometer Module
Bently Nevada 3300/81 Six Channel Rod Drop Monitor PLC Module 330081 132148-01
BENTLY NEVADA 330500 VELOMITOR *NEW ITEM"
Bently Nevada 2155/00 TDXnet PLC Transient Data Interface Rack Chassis Cage TDIX
Bently Nevada 3500/60 Temperature Monitor PLC Module 350060 Temp Bentley
Bently Nevada 3300 Dual Accelerometer Monitor 3300/25-01-04-04-01-00-00-00
Bently Nevada 3300/61 Dual Vector Monitor PWA 86655-01 86645-01 86635-01 PLC
Bently Nevada 3500/20 Rack Interface Module PLC PWA 125744-02 3500 20 350020
Bently Nevada - 3500 - 149992-01 - Spare 16-Channel Relay Output Module
BENTLY NEVADA 3500/20 RACK INTERFACE MODULE (K1-2)
BENTLY NEVADA 330180-50-05 NSFP 3301805005
BENTLY NEVADA 125800-01 KEYPHASOR I/O MODULE (216-2)
BENTLY NEVADA 170180-02-00 NSPP 1701800200
Bently Nevada 3300 DC Power Supply 3300/14-01-20-01 5A 5 A Amp 28VDC 120VAC
BENTLY NEVADA 146031-02 TRANSIENT DATA INTERFACE 14603102 FIBER NEW NO BOX
BENTLY NEVADA 300-00-00-32-18-02 USPP 3000000321802
Bently Nevada 3500/25 Enhanced 2 Channel Keyphasor 141532-01 & I/O Module
BENTLY NEVADA 30000-00-78-12-02 USPP 3000000781202
Bently Nevada System Monitor 3300/01 GEB
BENTLY NEVADA 19000-00-20-36-02 NSPP 1900000203602
BENTLY NEVADA 21504-24-64-0502 NSPP 2150424640502
BENTLY NEVADA 3300 TACHOMETER
BENTLY NEVADA Power Supply 3300/12-02-20-00
BENTLY NEVADA CA-90125-02-03-06-02-02-03-01-02 USPP CA90125020306020
BENTLY NEVADA 79492-01 NSPP 7949201
BENTLY NEVADA 21504-00-32-10-02 NSPP 2150400321002
BENTLY NEVADA 3500/20 USPP 350020
BENTLY NEVADA 72608 NSPP 72608
BENTLY NEVADA CA21504-60-96-05-02 PROXIMITY SENSOR / THRUST PROBE - NEW IN BOX
BENTLY NEVADA 30000-10-30-36-02 USPP 3000010303602
BENTLY NEVADA 30000-28-40-36-02 USPP 3000028403602
BENTLY NEVADA 28407-00-25-36-02 USPP 2840700253602
Bently Nevada Probe - 20643-02
Bently Nevada 18745-03
BENTLY NEVADA 90482-01 DUAL VIBRATION MONITOR P PCB CIRCUIT BOARD B391458
Bently Nevada 10 Slot Rack / Chassis 87840-01 System 3300 PLC Bentley PWA87840
Bently Nevada 10 Slot Rack / Chassis 87840-01 3300/05-24 PLC Bentley PWA87840
Bentley-Nevada 3500/40M 4-Channel Proximitor Monitor Module
Bently Nevada 3300 Dual Vibration Monitor PLC Module 3300/15-02-01-00-01-00-01
BENTLY NEVADA PWB47999-01 90460-03-05-03-01-01-027 CIRCUIT BD *NEW OUT OF A BOX*
BENTLY NEVADA 18745-04 PROXIMITOR *USED*
NEW BENTLY-NEVADA 1900/65 TOUCHSCREEN DISPLAY MONITOR 167699-01
Bently Nevada 3500/20 125744-02 Rack Interface Module 12574402 SAR
Bently Nevada Differential Expansion Monitor 3300/46-08-03-01-00 33004608030100
BENTLY NEVADA 3300 DUAL THRUST MONITOR PLC MODULE 330020 3300/20-06-02-01-00-00
Bently Nevada 72470-XX-XX-02-17-14-06-08-01-01-03-15
BENTLY NEVADA 3300/16 02-05-00-00-00-00 DUAL VIBRATION XY/GAP 3300160205000000
BENTLY NEVADA 21747-080-01 NSFP 2174708001
BENTLY NEVADA 330171-09-38-90-02-00 NSPP 3301710938900200
BENTLY NEVADA 24134-02 NSPP 2413402
Bently Nevada 330180-91-05 Proximitor 3300 XL 5/8mm Sensor - NEW (B102-3)
BENTLY NEVADA 21504-00-68-05-02 NSPP 2150400680502
BENTLY NEVADA 21500-00-32-10-02 NSPP 2150000321002
BENTLY NEVADA 21504-00-68-10-02 NSPP 2150400681002
BENTLY NEVADA 21504-00-28-10-02 NSPP 2150400281002
BENTLY NEVADA 21504-00-40-05-02 NSPP 2150400400502
BENTLY NEVADA 84141-01 USPP 8414101
BENTLY NEVADA 21501-00-36-10-02 NSPP 2150100361002
BENTLY NEVADA 22810-00-03-10-02 USPP 2281000031002
BENTLY NEVADA 22810-03-08-10-02 USPP 2281003081002
Bently Nevada 3300/15 Dual Vibration Monitor (60 Day Warranty)
BENTLY NEVADA 19000-20-34-36-02 USPP 1900020343602
BENTLY NEVADA 19000-00-07-36-02 NSPP 1900000073602
BENTLY NEVADA 19048-00-60-05-02 USPP 1904800600502
Bently Nevada 3500/15 AC Power Supply
Bently Nevada 3500/20 Rack Interface Module
BENTLY NEVADA TDM SAMPLER PWA 77448-01T
Bently Nevada 3300/20-02-01-00-00 Dual Thrust Monitor 330020 30-0-30 mils 20 mA
Bentley Nevada 330400-01-05 Accelerometer Acceleration Transducer
Bently Nevada 3500/15 AC Power Supply
BENTLY NEVADA VELOCITY PROBE 330525 *NEW*
BENTLY NEVADA 3500/60 TEMPERATURE MONITOR (K1-3)
Bently Nevada 3300 XL NSv Proximitor Sensor 330980-70-00 3309807000 7.87V/mm New
#1 BENTLY NEVADA 3300/16-02-01-00-00-00-00 DUAL VIBRATION XY/GAP MONITOR
#2 BENTLY NEVADA 3300/16-02-01-00-00-00-00 DUAL VIBRATION XY/GAP MONITOR
BENTLY NEVADA 3300/16-02-01-01-00-00-00 DUAL VIBRATION XY/GAP MONITOR
#2 BENTLY NEVADA 3300/16-02-01-02-00-00-00 DUAL VIBRATION XY/GAP MONITOR
Bently Nevada 72201-01-04-01-01-01-15 VIBRATION & PROX
BENTLY NEVADA 7200-RVDP-R USPP 7200RVDPR
BENTLY NEVADA 21504-00-60-10-02 NSPP 2150400601002
BENTLY NEVADA 72208-02 USPP 7220802
BENTLY NEVADA 21504-00-36-10-02 NSPP 2150400361002
BENTLY NEVADA 21504-00-52-10-02 NSPP 2150400521002
BENTLY NEVADA 21504-00-60-05-02 NSPP 2150400600502
BENTLY NEVADA 84143-01 NSPP 8414301
NEW BENTLY NEVADA 330850-90-05 3300 XL 22mm PROXIMITOR SENSOR works w/ all 25mm
BENTLY NEVADA 19000-00-XX-24-02 USPP 1900000XX2402
BENTLY NEVADA 19000-00-19-18-01 USPP 1900000191801
BENTLY NEVADA 21504-00-40-10-02 NSPP 2150400401002
NEW BENTLY NEVADA 24145-02 ACCELEROMETER INTERFACE MODULE BNC 24V DC B205640
Bently Nevada Engine Analyzer 24785 Vibration Control Parts Air Pump
BENTLY NEVADA 19000-00-90-12-02 USPP 1900000901202
NEW BENTLY NEVADA 330500 VELOMITOR PIEZO VELOCITY G08F017J SENSOR B326522
BENTLY NEVADA 7200-RVXY-R USPP 7200RVXYR
BENTLY NEVADA 7200-DRV-R USPP 7200DRVR
Bently Nevada 330525-01 Velomitor? XA Piezo-Velocity Sensor New
BENTLY NEVADA 72050-01-00 S7200-R 7200 SERIES SYSTEM POWER SUPPLY B353171
BENTLY NEVADA 79492-01 USPP 7949201
BENTLY NEVADA 2158-02-12-05-02 USPP 215802120502
BENTLY NEVADA 21504-000-008-05-02 NSPP 215040000080502
BENTLY NEVADA VELOMITOR VELOMETER 330525 NEW 3536
BENTLY NEVADA 330101-00-12-10-12-00 PROBE *NEW IN A BOX*
BENTLY NEVADA 3500/15 AC POWER SUPPLY 250VAC 5A (K1-2)
BENTLY NEVADA 3500/25 KEYPHASOR MODULE (K1-3)
BENTLY NEVADA 30000-00-52-18-02 NSPP 3000000521802
BENTLY NEVADA 21504-00-32-10-02 USPP 2150400321002
Bently Nevada 84140-01 XUDCR I/O Record Alert Relay Output 78462-01H New No Box
BENTLY NEVADA 30000-00-99-18-02 VIBRATION PROXIMITY PROBE SENSOR D455886
BENTLY NEVADA 21000-00-00-00-035-00-02 USPP 2100000000003500
BENTLY NEVADA 72072-01 USPP 7207201
BENTLY NEVADA 72052-01 USPP 7205201
Bently Nevada 3500/60 Temperature Monitor
BENTLY NEVADA 136188-01 USPP 13618801
Bently Nevada 3000 Series 300 Proximitor 20929-07
Bently Nevada HIGH TEMP 25 MM Proximitor 24654-04
Bently Nevada 200mv Proximitor 3109-300
BENTLY NEVADA 3300/10 USPP 330010
BENTLY NEVADA 21747-080-00 USPP 2174708000
BENTLY NEVADA FIELDMONITOR PROXIMITOR INPUT MONITOR 1701/15 170115
BENTLY NEVADA VGA DISPLAY I/O MODULE 147663-01 (L1-2)
NEW BENTLY NEVADA 330850-91-05 PROXIMITY
