Diagnostics Of Sm 321; Di 16 X Dc 24/125 V - Siemens SIMATIC Manual

3.12 Digital input module SM 321; DI 16 x DC 24/125 V; with hardware and diagnostic interrupts (6ES7321-7EH00-0AB0)
Tolerances of the programmable input delays
Table 3- 18 Tolerances of the input delays of SM 321; DI 16 x DC 24 V/125 V
Programmed input delay
0.1 ms
0.5 ms
3 ms (default)
15 ms
20 ms
Note
The timers for the input delay are only valid for reading in the status. In the case of wire-
break, "Wire-break diagnostics" is only triggered approx. 40 ms after the reading in of the
value.
3.12.2

Diagnostics of SM 321; DI 16 x DC 24/125 V

Diagnostic messages of SM 321; DI 16 x DC 24 V/125 V
The table below shows an overview of the diagnostic messages of SM
321; DI 16 x DC 24 V/125 V.
Table 3- 19 Diagnostic messages of SM 321; DI 16 x DC 24 V/125 V
Diagnostic message
Wire break
No channel parameters
No/incorrect parameters in module
Time monitoring activated (watchdog)
EPROM fault
RAM fault
Hardware interrupt lost
Note
To detect the errors indicated by programmable diagnostic messages, you must have
programmed the digital module accordingly in STEP 7.
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ
Tolerance
80 μs to 200 μs
580 μs to 700 μs
3.1 ms to 3.7 ms
15.1 ms to 18.1 ms
20.1 ms to 24.1 ms
LED Scope of diagnostics
SF Channel
SF Channel
SF Module
SF Module
SF Module
SF Module
SF Module
Digital modules
programmable
Yes
No
99