Connection Elements - Siemens simatic hmi op27 Equipment Manual

16.3

Connection Elements

Figure 16-2 OP27: Arrangement of connections
No. Name/Purpose
1)
Serial interfaces :
S
Ê
IF1A
S
Ë
IF2
S
Í
IF1B
Ì
DIL switch
Î
Chassis ground
Ï
Power supply/relay output
Ð
PCMCIA slot
Ñ
DKM or CPI (optional)
Ò
Battery compartment
(covered)
1) The connection plug pin assignment is described in Appendix B.
OP27, OP37 Equipment Manual
Release 05/99
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Ò
Ñ
Î Ï
Ê Ë
Level
RS232/TTY (active/passive)
RS232/TTY (active/passive)
RS422/RS485
For setting serial interface IF1B (refer to Appendix B). Set and check with
the table in Section 13.1.2, Configuring the IF1B interface.
Power supply (+ 24 V DC) and contact assemblies
(For pin assignment, refer to Section 13.1).
For JEIDA/PCMCIA cards.
For connecting a direct key module with 8 digital outputs or a control panel
interface with max. 16/32 digital inputs/outputs.
OP27 Unit Description
Ð
Í
Ì
Description
Usage
PLC
PC, PU, printer
PLC
–
–
16-3