9.5
Example I/O signal connections
This is only a connection example for CN8. Refer to the following for other connection examples.
Page 43 Example I/O signal connections
Input signal
There is a delay of up to 5 ms from input to output.
For source input interface
10 m or less
*2
24 V DC
SDICOM
*1
SDIA
SDIB
For sink input interface
10 m or less
*2
24 V DC
SDICOM
*1
SDIA
SDIB
*1 Separate the external input wiring into two routes, SDIA and SDIB.
*2 Supply interfaces with 24 V DC ± 10 % from external sources. If all the I/O points have been used there must be a total current capacity
of 0.2 A remaining. Reducing the number of I/O points decreases the current capacity. Refer to section 9.6 for information on the
voltages required for interfaces. Although the diagram shows the input signal and the output signal each using a separate 24 V DC
power supply for illustrative purposes, the system can be configured to use a single 24 V DC power supply.
Output signal
For source output interface
10 m or less
CN8
8
SDOCOM
6
SDOA
7
SDOB
For sink output interface
10 m or less
CN8
8
SDOCOM
6
SDOA
7
SDOB
*1 Separate the external output wiring into two routes, SDOA and SDOB.
*2 Supply interfaces with 24 V DC ± 10 % from external sources. If all the I/O points have been used there must be a total current capacity
of 0.2 A remaining. Reducing the number of I/O points decreases the current capacity. Refer to section 9.6 for information on the
voltages required for interfaces. Although the diagram shows the input signal and the output signal each using a separate 24 V DC
power supply for illustrative purposes, the system can be configured to use a single 24 V DC power supply.
CN8
3
4
5
CN8
3
4
5
*2
24 V DC
*1
*2
24 V DC
*1
9 USING FUNCTIONAL SAFETY [G] [WG]
9.5 Example I/O signal connections
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