Omron CPM2C Operation Manual page 52

Comparison with the CPM1A and CPM2A
!Caution Before using a CPM1A program containing one or more of the instructions in
Added Function Code
Allocations
Differences in I/O Memory
SR Area Differences
AR Area Differences
the table above, check the program to be sure that it will operate properly and
edit the program if necessary. The CPM2C may not operate properly if a
CPM1A program with these instructions is transferred and executed
unchanged.
The following three instructions are allocated function codes that were not
used in the CPM1A.
Instruction
RXD(47)
TXD(48)
SCL(66)
The following table shows differences in the SR area. (PV is the abbreviation
for present value.)
Function
Pulse output 0 PV
Pulse output 1 PV
Pulse output 0 PV Reset Bit
Pulse output 1 PV Reset Bit
RS-232C Port Reset Bit
Battery Error Flag
Changing RS-232C Port Setup Flag
The following table shows differences in the AR area.
Clock/calendar data
RS-232C Communications Error Code
RS-232C Error Flag
RS-232C Transmission Enabled Flag
RS-232C Reception Completed Flag
RS-232C Reception Overflow Flag
Peripheral Port Reception Completed Flag
Peripheral Port Reception Overflow Flag
RS-232C Reception Counter
High-speed Counter Comparison Flag
High-speed Counter Overflow/Underflow Flag
Pulse Output 0 Output Condition
Pulse Output 0 PV Overflow/Underflow Flag
Pulse Output 0 Pulse Quantity Set Flag
Pulse Output 0 Output Completed Flag
Pulse Output 1 PV Overflow/Underflow Flag
Pulse Output 1 Pulse Quantity Set Flag
Pulse Output 1 Output Completed Flag
Pulse Output 1 Output Status
Power OFF Counter
Note CPM1A programs that use AR 10 (the Power OFF Counter) cannot be used in
the CPM2C without editing the program. In the CPM2C, the Power OFF
Counter is in AR 23.
CPM2C
RECEIVE
TRANSMIT
SCALING
Function
Section 1-5
CPM1A
Not allocated. (NOP(00))
CPM2C
SR 228 to SR 229 Not sup-
ported.
SR 230 to SR 231
SR 25204
SR 25205
SR 25209
SR 25308
SR 25312
CPM2C
AR 17 to AR 21 Not sup-
ported.
AR 0800 to AR 0803
AR 0804
AR 0805
AR 0806
AR 0807
AR 0814
AR 0815
AR 09
AR 1108
AR 1109
AR 1111
AR 1112
AR 1113
AR 1114
AR 1212
AR 1213
AR 1214
AR 1215
AR 23 (See note.) AR 10
CPM1A
CPM1A
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