ABB RobotWare 7.7, Applications Manual

Page: 73 / 82

Setting up dual channel signals
The safety digital base device is configured with dual channels. A dual channel is
comprised of two signals, both electrically and in the software. In the safety digital
base, there are two pairs for output and six pairs for input.
Output signals
There are two dual channel pairs for output signals. The four output signals are
paired in the following way:
DSQC1042 Dual channel pair
1 (CH1)
SDO_1_-
SDO 2-
2 (CH2)
SDO_3_-
SDO_4_-
Note
To write a dual channel output signal, both signals in the pair must be set to high
in the safety controller. This is defined with CL-copy logic.
See Application manual - Functional safety and SafeMove for instructions on
how to define logic diagrams.
Intput signals
There are six dual channel pairs for input signals. The twelve input signals are
paired in the following way:
DSQC1042 Dual channel pair
1 (CH1)
SDI_1_-
SDI_2_-
2 (CH2)
SDI_3_-
SDI_4_-
3 (CH3)
SDI_5_-
SDI_6_-
4 (CH4)
SDI_7_-
SDI_8_-
Continues on next page
Application manual - Scalable I/O 73
3HAC070208-001 Revision: F
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4 Software commissioning
4.5 Configuring safety digital base devices
Continued