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

Digital modules
3.11 Digital input module SM 321; DI 16 x 24 VDC; with hardware and diagnostic interrupts (6ES7321-7BH01-
0AB0)
Tolerances of the programmable input delays
Table 3- 12 Tolerances of the input delays at SM 321; DI 16 x DC 24 V
Programmed input delay
0.1 ms
0.5 ms
3 ms (default)
15 ms
20 ms
3.11.3

SM 321; DI 16 x DC 24 V - Diagnostics

Diagnostic messages of SM 321; DI 16 x DC 24 V
The table below shows an overview of the diagnostic messages of SM 321; DI 16 x DC 24 V.
Table 3- 13 Diagnostic messages of SM 321; DI 16 x DC 24 V
Diagnostic message
Sensor supply missing
Wire break
Module not programmed
External auxiliary voltage missing
Internal auxiliary voltage missing
Fuse blown
Incorrect module parameters
Watchdog time-out
EPROM fault
RAM fault
Hardware interrupt lost
Note
A prerequisite for detecting faults indicated by programmable diagnostic messages is an
appropriate configuration of the digital module in STEP 7.
88
Tolerance
60 μs to 140 μs
400 μs to 900 μs
2.6 ms to 3.3 ms
12 ms to 15 ms
17 ms to 23 ms
LED Scope of diagnostics
SF Channel group
SF Channel group
SF Channel group
SF Module
SF Module
SF Module
SF Module
SF Module
SF Module
SF Module
SF Module
programmable
yes
no
S7-300 Module data
Manual, 06/2017, A5E00105505-AJ