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PD6310 Pulse Input Batch Controller Instruction Manual
13
Pulse Signal Connections
Signal connections are made to a six-terminal connector labeled SIGNAL on Figure 7. The COM
(common) terminal is the return for the input signals.
The following figures show examples of signal connections.
Setup and programming is performed through the front panel buttons.
Figure 7: Flowmeter Powered by Internal
Power Supply
Figure 8: Flowmeter Powered by External
Supply
Figure 9: Self-Powered Magnetic Pickup
Coil Flowmeter
Figure 10: NPN open Collector Input
Figure 11: PNP Sensor Powered by Inter-
nal Supply
Figure 12: Switch Input Connections
Modbus RTU Serial Communications
Serial communications connection is made to an RJ45 connector labeled M-LINK on Figure 7. Use the
PDA1232 for RS-232 interfacing or the PDA1485 for RS-485 interfacing. The same port is used for
interfacing with all expansion modules (
e.g.
external relays, digital I/O).
Relay Connections
Relay connections are made to two six-terminal connectors labeled RELAY1 – RELAY4 on Figure 7.
Each relay’s C terminal is common only to the normally open (NO) and normally closed (NC) contacts of
the corresponding relay. The relays’ C terminals should not be confused with the COM (common) terminal
of the INPUT SIGNAL connector.
Figure 13: Relay Connections
C
NO
NO
NC
NC
C
RELAY4
RELAY3
4
3
6
5
2
1
C
NO
NO
NC
NC
C
RELAY2
RELAY1
4
3
6
5
2
1
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