TI545/TI555 Controller and I/O Compatibility
C-2
TI545/TI555 System Manual
C.1 I/O Module Compatibility
Unmodified
Series 505 discrete I/O modules manufactured prior to
January
, 1988 are unable to report module status and, therefore, cannot be
recognized by the TI545/TI555 CPU (that is, inputs are not read and
outputs are not written). Series 505 discrete I/O modules manufactured in
January
, 1988 or later and those manufactured prior to this date that have
been modified contain the status reporting mechanism and are compatible
with the TI545/TI555 CPU.
The Series 505 Simulators (PPX:505–6010, 32-Input Simulator and
PPX:505–601
1, 32-Output Simulator) are also affected by this compatibility
restriction.
NOTE:
Note
1
in T
able B-1 indentifies all affected modules.
The following modules are fully compatible with the TI545/TI555 CPU,
regardless of the manufacturing date.
•
All Series 500 I/O and all non-discrete Series 505 I/O, such as analog
modules (except for the High Speed Counter, as described on page C-3)
•
Series 505 W
ord modules (PPX:505–6308, 8-Channel W
ord Input and
PPX:505–6408, 8-Channel W
ord Output)
I/O Modules not
Compatible with
TI545/TI555 CPUs
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