Functions of the IM 151-7 CPU
8-45
ET 200S IM 151-7 CPU Interface Module
A5E00058783-04
Table 8-17 Parameter blocks, settable parameters and their ranges for the IM 151-7 CPU, continue
Parameter
blocks
RangeSettable parameters
Cyclic interrupts Periodicity of the OB 35 (ms) 1 to 60000
Cycle/clock
memory
Scan cycle monitoring time (ms) 1 to 6000
Cycle load from communication (%) 10 to 50
OB85 call at I/O access error For each access
For incoming and outgoing
errors
No call
Clock memory Yes/no
Memory byte 0 to 255
Protection Level of protection 1: Key switch
2: Write protection
3: Write/readprotection
Mode Process mode:
permissible cycle increase
(ms)
from 3 to 65535
Test mode
Communication PD communication 1 to 11
OP communication 1 to 11
S7 basic communication 0 to 10
Parameters Interference frequency suppression 50 Hz / 60 Hz
Bus length (see Note) 1 m / 1 m
Number of reference junctions
Activated
Slot
Channel number
1
Yes/no
From 5 to 66
0/1
Note
The configuration length of an ET 200S station must not exceed 2 meters.
When does the CPU ”accept” the parameters?
The CPU accepts the parameters (configuration data) you have set:
After POWER ON or a memory reset of the inserted memory module
After the configuration data has been transferred without errors to the CPU
online in STOP mode
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