Specifications

Section 2. Quickstart Tutorial
2-8
Digital I/O Ports Used to Control/Monitor Pump
110 VAC
Pump
ACL1
Line
Monitor
C1
G
C2
G
CR10
C1 - Used as input to monitor pump status.
C2 - Used as output to switch power to a pump via a solid state relay.
FIGURE 2.1-7. Control and Monitoring of a Device
using Digital I/O Ports
2.1.10 RS-232 Sensors
RS-232 sensors can be connected to either the 9-pin RS-232 port or digital I/O
port pairs.. FIGURE 2.1-8 illustrates use of RS-232 or digital I/O ports.
FIGURE 2.1-8. Use of RS-232 and Digital I/O
when Reading RS-232 Devices