Mitsubishi Electric MELSEC-Q Series User Manual page 140

7 FUNCTION
Function
in bits
Batch read
in words
in bits
Batch write 1
in words
Random read in words
in bits
Test 1
(Random write)
in words
Monitor
in words
registration
Monitor in words
1: When performing write during RUN of the CPU module, set write during RUN setting to "Enable".
2: Set the number of processing points within the range of the following expression.
(Number of word access points) × 12 + (number of double word access points) × 14 ≤ 960
• One point of a bit device corresponds to 16 bits for word access or to 32 bits for double word access.
• One point of a word device corresponds to one word for word access or to two words for double word access.
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(2) Functions
The serial communication function allows the MC protocol commands in the
following table to be executed.
Refer to the following manual for details of the MC protocol.
• Q-Compatible MELSEC Communication Protocol Reference Manual
Command
Reads bit devices by 1 point.
0401 (00 1)
Reads bit devices by 16 points.
0401 (00 0)
Reads word devices by 1 point.
Writes to bit devices by 1 point.
1401 (00 1)
Writes to bit devices by 16 points
1401 (00 0)
Writes to word devices by 1 point.
Reads bit devices by 16 points or 32 points by
designating the devices at random.
0403 (00 0)
Reads word devices by 1 point or 2 points by
designating the devices at random.
Sets/resets bit devices by 1 point by designating
1402 (00 1)
the devices at random.
Sets/resets bit devices by 16 points or 32 points
by designating the units at random.
1402 (00 0)
Writes to word devices by 1 point or 2 points by
designating the devices at random.
Registers the bit devices to be monitored by 16
points or 32 points.
0801 (00 0)
Registers the word devices to be monitored by 1
point or 2 points.
Monitors the devices registered for monitoring.
0802 (00 0)
Processing
MELSEC-Q
Processing Points
ASCII: 3584 points
BIN: 7168 points
480 words (7680 points)
480 words
ASCII: 3584 points
BIN: 7168 points
480 words (7680 points)
480 words
96 points
94 points
2
96 points
96 points
Number of points
registered for monitor
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