1339
CJ-series Instruction Execution Times and Number of Steps Section 4-2
Note 1. When a double-length operand is used, add 1 to the value shown in the
length column in the following table.
2. Supported only by CPU Units Ver. 2.0 or later.
3. Execution times for the FIORF, IORD, and IORW instructions depends on
the Special I/O Unit from which data is being read.
4. CJ1-H-R CPU Units only.
4-2-22 Serial Communications Instructions
MATRIX INPUT
(See note 2.)
MTR 213 5 47.8 47.8 68.1 --- 76.4 77.7 Data input value: 0
48.0 48.0 68.0 --- 77.7 76.9 Data input value:
F
7-SEGMENT
DISPLAY OUT-
PUT
(See note 2.)
7SEG 214 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 222 4 ---
(See
note 3.)
---
(See
note 3.)
---
(See
note 3.)
---
(See
note 3.)
225.3 217.7 First execution
232.0 241.7 When busy
223.0 215.3 At end
INTELLIGENT I/O
WRITE
IOWR 223 4 ---
(See
note 3.)
---
(See
note 3.)
---
(See
note 3.)
---
(See
note 3.)
245.3 219.7 First execution
231.0 225.7 When busy
244.0 218.7 At end
Instruction Mne-
monic
Code Length
(steps)
(See
note.)
ON execution time (µs) Conditions
CPU6@
H-R
CPU6@
H
CPU4@
H
CPU4@ CJ1M
exclud-
ing
CPU11
/21
CJ1M
CPU11
/21
Instruction Mne-
monic
Code Length
(steps)
(See
note.)
ON execution time (µs) Conditions
CPU6
@H-R
CPU6
@H
CPU4
@H
CPU4
@
CJ1M
exclud-
ing
CPU11/
21
CJ1M
CPU11
/21
PROTOCOL
MACRO
PMCR 260 5 100.1 100.1 142.1 276.8 158.4 206.0 Sending 0 words,
receiving 0 words
134.2 134.2 189.6 305.9 210.0 256.7 Sending 1 word,
receiving 1 word
TRANSMIT TXD 236 4 68.5 68.5 98.8 98.8 109.3 102.9 Sending 1 byte
734.3 734.3 1.10
ms
1.10
ms
1.23
ms
1.16
ms
Sending 256 bytes
RECEIVE RXD 235 4 89.6 89.6 131.1 131.1 144.0 132.1 Storing 1 byte
724.2 724.2 1.11
ms
1.11
ms
1.31
ms
1.22
ms
Storing 256 bytes
TRANSMIT
VIA SERIAL
COMMUNI-
CATIONS
UNIT
TXDU 256 4 131.5 131.5 202.4 --- 213.4 208.6 Sending 1 byte
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