| 詳細(xì)參數(shù) | |||
|---|---|---|---|
| 品牌 | other | 型號(hào) | 301120 |
| 結(jié)構(gòu)形式 | 模塊式 | 安裝方式 | 控制室安裝 |
| LD指令處理器 | 硬PLC | I/O點(diǎn)數(shù) | 8 |
| 功能 | 輸入輸出系統(tǒng)模塊 | 工作電壓 | 24VDC |
| 程序容量 | 16MB | 數(shù)據(jù)容量 | 120Kz |
| 環(huán)境溫度 | -40°to85°C | 環(huán)境濕度 | 5%-95%非冷凝 |
| 加工定制 | 否 | 重量 | 1.00公斤 |
| 外形尺寸 | 23.00,8.00,8.00厘米 | ||
PILZ 301120
301120
皮爾茲
(PSS SB DI8OZ4)
輸入輸出系統(tǒng)模塊
安全總線
8 個(gè)數(shù)字輸入
4 個(gè)數(shù)字輸出 (2A) 正開(kāi)關(guān)
4 個(gè)數(shù)字輸出 (2A) 負(fù)開(kāi)關(guān)
2 個(gè)專(zhuān)用測(cè)試脈沖
24VDC電源
替代部件號(hào)： PSS SB DI8OZ4
Another reason for programming limitations is safety: the more flexible and unbounded a programming language is, the more potential there will be to unintentionally create complicated “run-time” errors when programming.
The ISA safety standard number 84 classifies industrial programming languages as either Fixed Programming Languages (FPL), PILZ 301120 Limited Variability Languages (LVL), or Full Variability Languages (FVL).Ladder Diagram and Function Block Diagram programming are both considered to be “l(fā)imited variability” languages, whereas Instruction List (and traditional computer programming languages such as C/C++, FORTRAN, BASIC, etc.) are considered “full variability” languages with all the attendant potential for complex errors.
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