Siemens SIMATIC ET 200SP HA Produktinformation Seite 11

Table 1 Pin assignment of Ex-DQ 2x23.1VDC/20mA
Termi Assig Termi
nal nmen nal
t
1 DQ.0+ 2
3 4
DQ.0-
5 Res 6
7 Res 8
Equipping
• Check the I/O module for damage! You may only plug undamaged I/O modules
onto the BaseUnit.
• The coding element on the BaseUnit latches into place the first time that a I/O
module is plugged in. This prevents the insertion of a wrong module. This
mechanical coding may not be changed.
• When configuring the ET 200SP HA and the ET 200SP, you must observe the
permissible number of I/O modules (see the respective operating instructions).
WARNING
Permissible number of I/O modules
When configuring the ET 200SP HA and the ET 200SP, you must observe the rules
specified below for the maximum configuration and load of the Ex power modules.
Load on the Ex power modules
Ensure that the current consumption of the Ex I/O modules of an Ex module group
does not exceed the permissible output current of the Ex power module.
The maximum current requirement of the I/O module can be found in the technical
specifications.
Permissible output current of the Ex power module > ∑ I
the respective potential group
Commissioning
• You must observe the national regulations during commissioning.
• You must observe the guidelines according to DIN EN IEC 60079-17 for functional
checks.
Ex-DQ 2x23.1VDC/20mA
A5E50377641-AA, 04/2021
Assig Explanations
nmen
t
DQ.1+ • Terminals 1; 2
DQ.n+: Output signal, channel n (0;1)
DQ.1-
• Terminals 3; 4
Res
DQ.n-: Ground, channel n (0;1)
Res
• Terminals 5; 6; 7; 8
Res: Reserve
Ex-DQ 2x23.1VDC/20mA
of all I/O modules of
max
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