S7-300 Modules; Wiring - Siemens CPU 313C Hardware And Installation Manual

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The table below shows you points to follow when wiring, installing or removing of

S7-300 modules.

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Blade width of screwdriver
Tightening torque
•
Attaching modules to the rail
•
Connecting cables
POWER OFF when replacing the
...
S7-300 operating mode when
replacing ...
Load voltage OFF when
replacing the ...
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The module you want to replace is still installed and wired. You want to install the
same type of module.
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Disturbances can corrupt data if you insert or remove S7-300 modules while data
is being transferred via MPI. Do not replace S7-300 modules while there is data
traffic on the MPI. If you are not certain whether or not data transfer is active on the
MPI, unplug the connector on the MPI before you replace the module.
10-4
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3.5 mm (cylindrical model)
from 0.8 N/m to 1.1 N/m
from 0.5 N/m to 0.8 N/m
Yes
–
Yes
S7-300 Automation System, Hardware and Installation: CPU 31xC and CPU 31x
 &38  60)0&3
from 0.8 N/m to
1.1 N/m
–
Yes
STOP
Yes
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