Instruction manual

Table Of Contents
Page
13
PC215E
Please note that the counter/timer clock and gate input sources are selected in software. if you
select one of the five internal frequencies or the Z1EXTCLK input as the clock source to a
counter/timer, you must ensure that no external signal is connected to the counter/timer's CLK
I/O pin on SK1. In this case, the internal signal selected will be available as an output signal on
the CLK I/O pin..
Similarly, if you select one of the internal gate signals as the source to a counter/timer's gate
input, you must ensure that no external signal is connected to the counter/timer's GAT I/P pin on
SK1.
3.2 Cable Connections
A screened 78 way cable with metal shielded 'D' connectors (Part Nº 90 966 349) is available to
provide cable connections to the PC215E. Alternatively, a mating 78 way 'D' pin connector kit is
available (Part Nº 91 945 953) should the user wish to construct custom cables.
A range of external expansion panels is also available to offer a variety of digital I/O operations
to the range of PC212E, PC214E, PC215E, PC218E and PC272E digital I/O and counter/timer
boards. These expansion panels are also compatible with the existing PC36AT Programmable
Digital I/O board (Part Nº 90 893 163).
3.2.1 Features Summary of the Expansion Panels
As with the digital I/O boards, the expansion panels are of modular design employing common
circuit groups and constructional techniques.
Expansion Panels Common Features
200 Series compatible
DIN rail mounting
Cage clamp terminals
Common circuit groups
78 way shielded connector for user I/O
37 way shielded interconnect cables
Connection groups compatible with I/O boards
Multiple ground I/O connections
User manual
Expansion Panels Individual Features
EX233 - Termination and Distribution Panel (TTL level termination and/or distribution)
EX213 - 24 Line Digital Output Panel (24 Isolated relay outputs; 24 high level source
drivers)
EX230 - 24 Line Digital Input Panel (24 isolated high or low level inputs; 24 common high
or low level inputs)
EX221 - 16 Line Input, Eight Line Output Panel (16 isolated or common hi/lo level inputs;
eight relay and driver outputs)