Omron SYSMAC CVM1 Series Operation Manual page 26

Specifications
PC Link Connector
Pin Arrangement
Interfaces
Using Electrical Cables
(Two-wire Half-duplex
Method)
PC Link connector
5.
9
PC LINK
6
1.
Connecting cable and connectors are required to connect PC Link Units
together. (One connector is included with each PC Link Unit.)
When an existing PC Link Unit is being replaced with a CVM1-LK401 PC Link
Unit, the existing connector and cable can be used without changes.
For details on assembling the connecting cables, refer to the C200H-LK401/
C500-LK009-V1 PC Link System Manual (W135).
When connecting 3 or more PC Link Units, a 3G2A9-AL001 Link Adapter is
required for each branch. (A Link Adapter is equipped with 3 connectors.)
Set the Transmission Line Selector Switch to the right to select two-wire com-
munications. Refer to 2-4 Cable Length and Terminating Resistance Settings
for details.
3G2A9-AL001
PC Link Unit
Link Adapter
−
+
Pin number Signal name (Abbreviation)
1 Not used.
2 Not used.
3 Not used.
4 Not used.
5 Transfer data B (DB)
6 Not used.
7 Frame ground (FG)
8 Not used.
9 Transfer date A (DA)
Hood bracket Frame ground (FG)
PC Link Unit
−
+
−
PC Link Unit
+
Section 2-1
11