OPERATION MANUAL CompoBus/S

Water-resistant Terminals Section 5-4
Internal Circuits
CompoBus/S
communications
connector
Node Number Settings
Set the node number in hexadecimal with the rotary switch as shown in the
following table.
Node number Setting (Hex) Node number Setting (Hex)
0 0 8 8
1 1 9 9
2 2 10 A
3 3 11 B
4 4 12 C
5 5 13 D
6 6 14 E
7 7 15 F
Note The possible range of node numbers varies with the type of Master and settings
in the Master. Refer to 2-1 Communications Specifications for details.
Communications Mode Settings
The following communications modes are set with pin 3 of the DIP.
Pin 3 CommunicaCommunicaCommunicaCommunications mode tions distance tions baud rate tions cycle time
OFF High-speed Communications
Mode
100 m max. 750 kbps 0.5 or 0.8 ms
ON Long-distance
Communications
Mode
500 m max. 93.75 kbps 4.0 or 6.0 ms
Note Make sure that the communications mode of the Slave is the same as that of
the Master Unit. If the communications modes are not the same, normal communications
with the Master Unit will not be possible. The operating status of
the Slave can be verified with LED indicators. Refer to 6-5-1 Indicators.
SRT2–ID04CL, SRT2-ID08CL
The following diagram shows the internal circuits for the SRT2-ID04-CL and
SRT2-ID08CL.
Internal circuitry
Photocoupler
Photocoupler
External power
supply connector
Input connector 0
Input connector 1
271