At Expansion Slot (Op37 Only) - Siemens simatic hmi op27 Equipment Manual

Options
18.1

AT Expansion Slot (OP37 only)

The optionally available AT expansion slot for the OP37 can be installed to
accommodate two 2/3-long 16–bit AT cards.
The AT expansion slot is screwed to the rear of the OP37. It can be retrofitted
at any time.
Functionality of The slots are not supported by the OP37 firmware. AT cards which can be
the AT slots inserted include communication cards (CP5411, CP5412, MPI card), for exam-
ple.
Installing AT
Carry out the following steps to install an AT expansion card:
expansion slots
and AT cards
!
1. Set the unit down with its front plate facing downwards.
2. Remove the two screws ¶ and then remove the cover · indicated in
Figure 18-1 Remove the cover
3. Insert the AT expansion slot using the plug-and-socket device into the
18-2
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Caution
S
Make sure that the OP is disconnected from the power supply.
S
Always follow the ESD guidelines in the Appendix when working on open
equipment.
Figure 18-1 from the rear panel of the OP. Return the screws to the same
position in the housing.
socket located under the cover · in Figure 18-1.
·
¶ ¶
OP27, OP37 Equipment Manual
Release 05/99