Starting Up The If 961-Aio Interface Submodule; Electrical Installation - Siemens Simatic M7-400 Reference Manual
Programmable controllers module specifications
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Interface Submodules
13.7.6
Starting Up the IF 961-AIO Interface Submodule
Electrical Installation
You must connect the ground terminal (M and S
module with the ground terminal of the load power supply. Use a cable with a
cross-section of 1 mm
Unswitched Channels
You must short-circuit unswitched input channels. This achieves optimal noise
immunity for the analog module.
Leave unswitched output channels open.
13.7.7
Addressing
Addressing
The IF 961-AIO interface submodule is addressed with the M7-300/400-reserved
I/O address area (starting from C000
Addressing in the M7-300/400-Reserved I/O Address Area
The base address depends on the interface submodule slot in the expansion
module or the programmable module. See the descriptions "M7-300 Expansions",
"M7-400 Expansions" or the description of the M7-400 programmable modules for
the slot-dependent base address of the interface submodule.
The I/O address is the sum of the base address and the offset address.
The registers and their meanings and the offset addresses are described below.
Table 13-39
Offset
Address
00
H
02
H
04
H
06
H
08
H
0A
H
0C
H
0E
H
13-46
2
for this purpose.
Offset Address Assignments for the IF 961-AIO Interface Submodule
Function when
Reading
0
ADC data channel 0 (2
- 2
0
ADC data channel 1 (2
- 2
0
ADC data channel 2 (2
- 2
0
ADC data channel 3 (2
- 2
Indication of settings such as automatic
conversion, cycle time, interrupt enable
Indication of channel number
Indication of end of conversion (EOC)
and voltage fault
Reserved
S7-400, M7-400 Programmable Controllers Module Specifications
S
) of the analog input/output
0/
1
).
H
Function when
15
)
ADC data channel 0 (2
15
)
ADC data channel 1 (2
15
)
Reserved
15
)
Reserved
Setting of automatic conversion,
cycle time and interrupt enable
Output of channel number
Start of analog-digital conversion
Interrupt acknowledgment
Writing
0
15
- 2
)
0
15
- 2
)
A5E00069467-07
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