Yamaha RCX240, User Manual

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Chapter 6 PARALLEL I/O INTERFACE Chapter 6 PARALLEL I/O INTERFACE
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2.1 ID settings
Use the DIP switch on the option I/O interface unit (adjacent to OPT. DIO connector) to set the ID.
DIP switch OPT.DIO connector
Upward direction
DIP switch
The DI/DO ports are assigned based on these ID. (
■
: switch lever)
DIP switch ID Input port No. Output port No.
1 2
1
DI40 to DI47
DI50 to DI57
DI60 to DI67 DO30 to DO37
DO40 to DO47
1 2
2
DI70 to DI77
DI100 to DI107
DI110 to DI117 DO50 to DO57
DO60 to DO67
1 2
3
DI120 to DI127
DI130 to DI137
DI140 to DI147 DO70 to DO77
DO100 to DO107
1 2
4
DI150 to DI157
DI160 to DI167
DI170 to DI177 DO110 to DO117
DO120 to DO127
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CAUTION
Always use different ID when two or more option I/O interface units are used. If
different units have the same ID, an option setting error is issued and correct
operation cannot be guaranteed.
2.2 Power supply
The option I/O interface uses an external 24V power supply. Be sure to always connect
the 24V and ground terminals of the external power supply to pins P.COMxx and N.COMxx of the
OPT. DIO connector on the controller.
An error is issued when the controller power is turned on if the external 24V power supply is not
connected.
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CAUTION
Do not keep supplying the external 24V DC power to the optional I/O interface
while controller power is off. The controller might malfunction if the external 24V is
continuously supplied.
2. Option I/O interface overview