Siemens S7-400 ユーザーズマニュアル

E-3

S7-400, M7-400 Programmable Controllers Module Specifications
A5E00069467-07

S +

Sensor lead (positive)

S –

Sensor lead (negative)

SCL

Structured control language

SP

Sensor power

SF

“Group error” LED

SFB

System function block

SFC

System function

SM

Signal module

SSI

Synchronous serial interface

SSL

System status list

STL

Statement list

TD

Text display

TR

Transducer

U

CM

Common mode voltage

U

H

Auxiliary voltage

U

iso

Potential difference between M

ANA

 and local ground

UC

Universal current

UR

Universal rack

USR

USR

Vs

Sensor voltage

VZ

Sign