55
CHAPTER 5 MC PROTOCOL COMMUNICATION
5
5.1 Sending a C
ommand fr
om an Ext
ernal Device to the
CPU Module
5.1.2 MC
protocol co
mmands
(b) When A-compatible 1E frame is used
: Available,
×: N/A
*1
Devices such as TS, TC, CS, and CC cannot be specified in units of words. If specified, an error (4032
H
) occurs during
monitoring.
Function
Command
/response
type
Description
Number of
processed
points
Status of CPU module
STOP
RUN
Write
enabled
Write
disabled
Device
memory
Batch read
In units
of bits
00
H
Reads bit devices in units of one point.
256 points
In units
of words
01
H
Reads bit devices in units of 16 points.
128 words
(2048 points)
Reads word devices in units of one point.
256 points
Batch write
In units
of bits
02
H
Writes bit devices in units of one point.
256 points
×
In units
of words
03
H
Writes bit devices in units of 16 points.
40 words
(640 points)
Writes word devices in units of one point.
256 points
Test
(Random
write)
In units
of bits
04
H
Sets/resets bit devices in units of one point by
randomly specifying a device or device number.
80 points
×
In units
of words
*1
05
H
Sets/resets bit devices in units of 16 points by
randomly specifying a device or device number.
40 words
(640 points)
Writes word devices in units of one points by
randomly specifying a device or device number.
40 points
Monitor
data
registration
In units
of bits
06
H
Registers bit devices to be monitored in units of
one points.
40 points
In units
of words
*1
07
H
Registers bit devices to be monitored in units of
16 point.
20 words
(320 points)
Registers word devices to be monitored in units
of one point.
20 points
Monitor
In units
of bits
08
H
Monitors devices with monitor data registered.
Number of
registered points
In units
of words
*1
09
H
Summary of Contents for melsec q03ud(E)cpu
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