332
I/O Link Units for CPM2C
Section 5-10
Slave Components
The following diagram shows the main components of the CPM2C-SRT21 I/O
Link Unit. The functions of these components are described below.
Indicators
The following table shows the meaning of the indicators.
DIP Switch
Always turn OFF the CPM2C CPU Unit before changing DIP switch settings.
Note
Always turn OFF the power supply to the CPM2C before setting the DIP
switch.
Node Number Setting
Set the node number with 1 through 4, as shown in the following table.
Indicators
Indicate the status of the Slave and communications
DIP Switch
The DIP switch's pins have the following functions:
Pins 1 to 4: Node number setting
Pin 5: Communications mode setting
Pin 6: Hold/Clear outputs for communications error
Communications Connector
Connect the CompoBus/S communications cable. The communications
power supply is not connected. A suitable connector is provided with
the CPM2C-SRT21.
Indicator
Name
Status
Meaning
COMM
(yellow)
Communications
ON
Normal communications
OFF
A communications error has occurred
or the Unit is in standby status.
ERR (red)
Communications
error
ON
A communications error has occurred.
OFF
Normal communications or the Unit is
in standby status.
Hold/Clear outputs for communications error
Communications mode setting
Node number setting
Node
number
SW4 (8)
SW3 (4)
SW2 (2)
SW1 (1)
Node
number
SW 4 (8)
SW 3 (4)
SW2 (2)
SW1 (1)
0
OFF
OFF
OFF
OFF
8
ON
OFF
OFF
OFF
1
OFF
OFF
OFF
ON
9
ON
OFF
OFF
ON
2
OFF
OFF
ON
OFF
10
ON
OFF
ON
OFF
3
OFF
OFF
ON
ON
11
ON
OFF
ON
ON
4
OFF
ON
OFF
OFF
12
ON
ON
OFF
OFF
5
OFF
ON
OFF
ON
13
ON
ON
OFF
ON
6
OFF
ON
ON
OFF
14
ON
ON
ON
OFF
7
OFF
ON
ON
ON
15
ON
ON
ON
ON
