Siemens SIMATIC C7-635 - Page 51

Special Features of the C7-635
4-3
C7-635 Control System
A5E00155581-04
The following applies for activated operating mode selection:
• You must have bridged the authorization inputs AT1/AT2
• The key LEDs alongside the operating mode keys indicate the mode selector
setting
• The current CPU operating status is indicated by the status LEDs
The following applies to deactivated operating mode selection:
• You must leave the authorization inputs AT1 and AT2 open
• The key LEDs alongside the operating mode keys are switched off
• The current CPU operating status is indicated by the status LEDs
The authorization inputs are located on supply connector X1 of the C7-635
(see also Table 3-2).
Authorization activated:
AT2
AT1
M
L+
1234
X1
AT1 - AT2 bridged
Authorization deactivated:
AT2
AT1
M
L+
1234
X1
AT1 - AT2 open
Table 4-1 Operating Mode Keys
Operating
Mode
Key Description/Procedure
RUN
(R)
The C7-CPU executes the user program.
Programs and data:
• Can be read out from the C7-CPU with the programming
device/PC (C7 → programming device).
• Can be transmitted to the S7-CPU or changed there
(programming device/PC → C7).
STOP
(S)
The C7-CPU does not execute user programs.
Programs:
• Can be read out from the C7-CPU with the programming
device/PC (C7 → programming device/PC)
• Can be transmitted to the C7-CPU and changed there
(programming device/PC → C7).
Note:
STOP mode is only valid for the C7-CPU. It does not apply to the
C7-TP/OP. It is always possible to continue working with the
C7-TP/OP.
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