Siemens SIMATIC S7-1500 Manual page 16

Connecting
3.1 Block diagram
Block diagram
The following figure shows the assignment of channels to addresses.
①
Backplane bus interface
②
Microcontroller 1
③
P1 switch for channel groups 0 to 3
④
Microcontroller 2
⑤
P1 switch for channel groups 4 to 7
⑥
Reverse polarity protection
DQ-P Output bit n, channel n, P-switching
n
Note:
In PP operation, the DQ M channels are not used.
•
Terminal 19 and 39 (L+) bridged internally
•
Terminal 20 and 40 (M) bridged internally
•
Note the maximum permissible cable cross-sections and use both terminals, if necessary.
Image 3-1 Block diagram of the F-DQ 8x24VDC/2A PPM
16
DQ-M Ground for output bit n, channel n, M-switching
n
L+ Supply voltage 24 V DC
M Chassis ground
CH Channel or LED channel status, channel diag-
nostics (green, red)
PWR LED supply voltage (green)
RUN RUN LED (green)
ERROR LED module diagnostics (red)
Digital output module F-DQ 8x24VDC/2A PPM (6ES7526-2BF00-0AB0)
Manual, 01/2016, A5E03858037-AA