Interface Modules
8-4
ET 200S Distributed I/O System
EWA-4NEB 780602402-12
Parameters for the IM151-3 PN interface module
Table 8-5 Parameters for the IM151-3 PN interface module
IM151-3 PN
Value range Default
setting
Effective range
Bus length ≤ 1m/>1m ≤1m ET 200S
Interference Frequency
Suppression
50 Hz/60 Hz 50 Hz ET 200S
Reference junction slot None/2 to 63 none ET 200S
Reference junction input RTD on channel 0/
RTD on channel 1
0 ET 200S
DP interrupt mode (only with IM151-1 STANDARD (from 6ES7 151-1AA04-0AB0),
IM151-1 FO STANDARD (from 6ES7 151- 1AB03-0AB0)
and IM151-1 HIGH FEATURE)
This parameter allows you to enable or disable DPV1 operation of the ET 200S. If
DPV1 mode is enabled, data sets and interrupts are supported via class 1 services
and class 2 services (configurable).
Requirements:
• The DP master also support DPV1.
Bus length
≤ 1 m: default, the maximum bus length is 1 m.
>
1 m: the bus length of the ET 200S is
>
1mandcanbeamaximum2m.This
setting will, however, increase the response time of the ET 200S (see Appendix D).
Operation at Preset <> Actual configuration
If the parameter is enabled and:
• Modules are removed and inserted during operation, this does not lead to a
station failure of the ET 200S.
• The actual configuration differs from the expected configuration, the ET 200S
continues to exchange data with the DP master .
If the parameter is disabled and:
• Modules are removed and inserted during operation, this leads to a station
failure of the ET 200S.
• The actual configuration differs from the expected configuration, there is no
data transfer between the DP master and the ET 200S. Exception: option
handling with RESERVE modules (see Chapter 3.8).
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