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CS/CJ/NSJ Series Instructions Reference Manual (W474)
4. Instruction Execution Times and Number of Steps
*1 Execution of the IORD, IORW, and FIORF instructions depends on the Special
I/O Units for which they are being executed.
4-2-22 Serial Communications Instructions
CPU BUS I/O
REFRESH
DLNK 4 287.8 287.8 315.5 321.3 458.7 --- Allocated 1 word
7-SEGMENT
DECODER
SDEC 4 6.5 6.5 6.9 8.1 15.7 14.1 ---
DIGITAL SWITCH
INPUT
DSW 6 50.7 50.7 73.5 77.7 77.6 --- 4 digits, data input
value: 0
51.3 51.3 73.5 83.2 80.0 --- 8 digits, data input
value: 00
TEN KEY INPUT TKY 4 9.7 9.7 13.2 18.7 18.6 --- Data input value:
00
10.7 10.7 14.8 20.2 19.1 --- Data input value:
FF
HEXADECIMAL
KEY INPUT
HKY 5 50.3 50.3 70.9 77.3 78.1 --- Data input value:
00
50.1 50.1 71.2 76.8 77.3 --- Data input value:
FF
MATRIX INPUT MTR 5 47.8 47.8 68.1 76.4 77.7 --- Data input value:
00
48.0 48.0 68.0 77.7 76.9 --- Data input value:
FF
7-SEGMENT
DISPLAY OUT-
PUT
7SEG 5 58.1 58.1 83.3 89.6 89.9 --- 4 digits
63.3 63.3 90.3 98.3 99.2 --- 8 digits
INTELLIGENT I/O
READ
IORD 4
*1 *1 *1 *1 *1 *1
---
INTELLIGENT I/O
WRITE
IOWR 4
*1 *1 *1 *1 *1 *1
---
Instruction Mne-
monic
Length
(steps)
ON execution time (µs) Conditions
CJ1H
CPU6@
H-R
CJ1H
CPU6@
H
CJ1G
CPU4@
H
CJ1M
CPU12/13/
22/23
CJ1M
CPU11/
21
CJ1G
CPU4@
PROTOCOL
MACRO
PMCR 5 100.1 100.1 142.1 158.4 206.0 276.8 Direct specifica-
tion
134.2 134.2 189.6 210.0 256.7 305.9 Operand specifi-
cation, sending
1 word, receiv-
ing 1 word
TRANSMIT TXD 4 68.5 68.5 98.8 109.3 102.9 98.8 Sending 1 byte
734.3 734.3 1.10 ms 1.23 ms 1.16 ms 1.10 ms Sending
256 bytes
RECEIVE RXD 4 89.6 89.6 131.1 144.0 132.1 131.1 Storing 1 byte
724.2 724.2 1.11 ms 1.31 ms 1.22 ms 1.11 ms Storing 256 bytes
TRANSMIT VIA
SERIAL COM-
MUNICA-
TIONS UNIT
TXDU 4 131.5 131.5 202.4 213.4 208.6 --- Sending 1 byte
Instruction Mne-
monic
Length
(steps)
ON execution time (µs) Conditions
CJ1H
CPU6@
H-R
CJ1H
CPU6@
H
CJ1G
CPU4@
H
CJ1M
CPU12/
13/22/23
CJ1M
CPU11/
21
CJ1G
CPU4@
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