Mitsubishi Electric MELSEC-L SERIES Basic User Manual page 310

(4) Processing time of the dedicated instructions
The following table lists approximate operation processing time of each dedicated instruction. The operation
processing time differs depending on the system configuration and the scan time on the sending/receiving
stations.
Number of access points
Instruction
name
Condition 1) Condition 2)
BUFRCV
BUFRCVS 1 word
BUFSND
CLOSE 1 port
ERRCLR All error information is cleared.
ERRRD An initial error code is read.
OPEN 1 port
RECVS
READ
SREAD
RECV
1 word
SEND
WRITE
SWRITE
ZNRD
ZNWR
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UINI
ECPRTCL
*1 The processing time of the ECPRTCL instruction differs depending on a connected device or a protocol.
308
Processing time (unit: ms)
LCPU
For 1)
0.80
1017
0.23
words
7.44
2.36
1.06
1.04
2.12
960 words
0.23
480 words
960 words
7.20
480 words
960 words
7.28
480 words
960 words
1.38
480 words
960 words
4.64
480 words
960 words
7.28
480 words
960 words
7.36
480 words
7.12
230 words
7.04
11.20
*1
Instruction execution condition
For 2)
1.16
TCP/IP communications, binary code communications, and fixed
0.61
buffer communications (procedure exists)
10.80
A UDP/IP transmission port is closed.
A UDP/IP transmission port is open.
0.62
0.42
12.50
9.84
12.60
9.92
Communications between E71-connected stations
2.00
1.86
8.32
6.32
13.00
9.84
13.00
10.20
7.84
8.48
Time between the UINI instruction accepted and reinitialization
completed (X19 turning on)
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