Siemens Metro 21 M216KA Operator's Manual page 71

Distributed i/o device
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TB 16SC Terminal
Designation
Terminal
Assignments
!
ET 200L, ET 200L-SC and ET 200L-SC IM-SC Distributed I/O Device
EWA 4NEB 780 6009-02c
The following table contains an example of the assignment of terminals to
slots.
Slot
Slot A (on the extreme left)
Slot B
Slot C
Slot D
Slot E
Slot F
Slot G
Slot H
Not all electronic modules use all the terminals assigned to the slot.
Unused terminals must not be wired in order to maintain the clearance and
creepage distances.
Warning
There is a risk of injury and damage to property.
Connecting cables to unassigned terminals can cause injury and damage to
property.
Do not connect cables to unassigned terminals.
Wiring
Terminals
1L+; 2L+
1M; 2M
A1;A2;A3;A4
B1;B2;B3;B4
C1;C2;C3:C4
D1;D2;D3;D4
E1;E2;E3;E4
F1;F2;F3;F4
G1;G2;G3;G4
H1;H2;H3;H4
3-15

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