Appendices
A-102
CJ2 CPU Unit Software User’s Manual
*1 Execution of the IORD, IORW, and FIORF instructions depends on the Special I/O Units for which they are being exe-
cuted.
ANALOG OUTPUT
DIRECT CONVER-
SION (for CJ1W-
DA042V)
AODC 217 3 23.1 24.4 Analog output number: 1,
Number of analog out-
puts used: 4
44.1 45.3 Analog output number: 0,
Number of analog out-
puts used: 4
PCU HIGH-SPEED
POSITIONING (CJ1W-
NC@@4 or CJ1W-
NC@81 only)
NCDMV 218 4 81.7 95.3 ---
PCU POSITIONING
TRIGGER (CJ1W-
NC@81 only)
NCDTR 219 3 22.9 25.5 ---
INTELLIGENT I/O
READ
IORD 222 4 *1 *1 ---
INTELLIGENT I/O
WRITE
IOWR 223 4 *1 *1 ---
A-2-23 Serial Communications Instructions
Instruction Mnemonic FUN No.
Length
(steps)
ON execution time (µs)
Conditions
CJ2H
CPU6@(-EIP)
CJ2M-
CPU@@
PROTOCOL MACRO PMCR 260 5 57.8 97.8 Direct specification
77 132 Operand specifica-
tion, sending 1 word,
receiving 1 word
PROTOCOL MACRO
2
PMCR2 264 6 49.5 96.0 Direct specification
69 129 Operand specifica-
tion, sending 1 word,
receiving 1 word
TRANSMIT TXD 236 4 57.5 93.8 Sending 1 byte
517 947 Sending 256 bytes
RECEIVE RXD 235 4 79 128 Storing 1 byte
570 1033 Storing 256 bytes
DIRECT TRANSMIT
VIA SERIAL COMMU-
NICATIONS
UNIT/SERIAL PORT
(CJ1W-SCU22, CJ1W-
SCU32, or CJ1W-
SCU42 only)
TXDU 256 4 75 130 Sending 1 byte
DIRECT RECEIVE
VIA SERIAL COMMU-
NICATIONS
UNIT/SERIAL PORT
(CJ1W-SCU22, CJ1W-
SCU32, or CJ1W-
SCU42 only)
RXDU 255 4 74 128 Storing 1 byte
DIRECT TRANSMIT
VIA SERIAL COMMU-
NICATIONS UNIT
DTXDU 262 4 25.8 37.0 Sending 1 byte
179 203 Sending 256 bytes
Instruction Mnemonic FUN No.
Length
(steps)
ON execution time (µs)
Conditions
CJ2H
CPU6@(-EIP)
CJ2M-
CPU@@
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