Application Precautions For Differences Between Versions - Omron ZEN Operation Manual

Version Upgrades
Area
CPU Unit input bits
CPU Unit output bits Q0 to Q3 (4 bits)
Timers
Holding timers
Counters
Weekly timers
Calendar timers
Displays
Work bits
Holding bits
Expansion I/O Unit
input bits
Expansion I/O Unit
output bits
Analog comparators
Comparators
7-1 Application Precautions for Differences between
Versions
Memory Cassette Compatibility
Version of CPU Unit used to
write the Memory Cassette
Ver. 1.00
Ver. 1.10
Ver. 2.00 10 I/O points
(V1 CPU Units)
20 I/O points
Note
xxii
2. Memory Area Comparison between V1 and Pre-V1 CPU Units
ZEN-10C@@@-@-V1 ZEN-20C@@@-@-V1
I0 to I5 (6 bits)
T0 to Tf (16 bits)
#0 to #7 (8 bits)
C0 to Cf (16 bits)
@0 to @f (16 bits)
0 to
D0 to Df (16 bits)
M0 to Mf (16 bits)
H0 to Hf (16 bits)
X0 to Xb (12 bits)
Y0 to Yb (12 bits)
A0 to A3 (4 bits)
P0 to Pf (16 bits)
Be aware of the following restrictions when using a Memory Cassette
containing a program that was stored from a CPU Unit with a different
version of system software.
Version of CPU Unit used to read the Memory Cassette
Ver. 1.00
OK
Restrictions
(See note 1.)
Restrictions
(See note 1.)
Restrictions
(See notes 1,
2, and 3.)
1. The new display functions (display clear: -CD@ and day/month
display: DAT1) cannot be used and will be ignored.
V1 CPU Units
I0 to Ib (12 bits)
Q0 to Q7 (8 bits)
f (16 bits)
Ver. 1.10
OK
OK
Restrictions
(See note 2.)
Restrictions
(See notes 2
and 3.)
Pre-V1 CPU Units
ZEN-10C@@@-@
I0 to I5 (6 bits)
Q0 to Q3 (4 bits)
T0 to T7 (8 bits)
#0 to #3 (4 bits)
C0 to C7 (8 bits)
@0 to @f7(8 bits)
0 to
D0 to D7 (8 bits)
Ver. 2.20 (V1 CPU Units)
10 I/O points 20 I/O points
OK OK
OK OK
OK OK
Restrictions OK
(See note 3.)
7
7 (8 bits)