3 - 16 WBPEEUI240751C0
I/O Block
screw terminals accommodate wire lugs and the clamp termi-
nals accommodate stripped wires. Figure 3-11 shows the
screw terminal base and Figure 3-12 shows the clamp termi-
nal base.
NOTE: A DIO block uses an R type base to connect its digital outputs to an
RLY block. When an RLY block is connected, the DIO block outputs drive either
electromechanical or solid state relays. The R type base has screw or clamp
terminals for digital input wiring, and a connector to cable the digital outputs to
the RLY block.
The terminals accept wiring with a cross-sectional area of up to
3.3 square millimeters stranded (12 AWG stranded). The num-
ber of terminals depends on the number and types of I/O
channels.
To simplify the installation process, the terminals are clearly
marked to identify positive (+) and negative (–) polarity, and
three-wire RTD, normally open relay contact, and normally
Figure 3-11. Screw Terminal Base (S Type)
T01461A
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