Siemens SIMATIC S7-300 Reference Manual page 313

Programmable logic controllers module data

Hide thumbs Also See for SIMATIC S7-300:

Table of Contents

Special characteristics of the wire-break check for the 4 to 20 mA measuring

With a parameterized measuring range of 4 to 20 mA and enabled wire-break

check, the analog input module enters wire-break in the diagnosis when a current

falls below 3.6 mA.

If you have enabled diagnostics interrupt during configuration, the module

additionally triggers a diagnostic interrupt.

If no diagnostic interrupt has been enabled, the illuminated SF LED is the only

indication of the wire-break and you must evaluate the diagnostic bytes in the user

With a parameterized measuring range of 4 to 20 mA and disabled wire-break

check and enabled diagnostic interrupt, the module triggers a diagnostic interrupt

when the underflow is reached.

Programmable Logic Controllers S7-300 Module Data

A5E00105505-03

Analog Modules

Show Quick Links

Table of Contents