Mitsubishi Q00JCPU User Manual page 480

6
FUNCTIONS
(2) Specifications
6
- 180 6.24 Serial Communication Function
(a) Transmission specifications
Table6.51 indicates the transmission specifications of RS-232 used for the serial
communication function of the CPU module.
Use the serial communication function after making sure that the specifications of
the personal computer, Display device or the like match those of Table6.51.
Table6.51 Transmission specifications of serial communication function
Item
Communication Full-duplex
system communication
Synchronization
Asynchronous system
system
*1
19.2kbps
Transmission speed
Start bit: 1
Data bit: 8
Data format
Parity bit: Odd
Stop bit: 1
MC protocol format
Format 4 (ASCII)
*2
(Automatic
Format 5 (binary)
judgment)
QnA-compatible 3C
frame
*2
Frame
QnA-compatible 4C
frame
Transmission control DTR/DSR control
*1
Yes
Sumcheck
Transmission wait
No wait
*1
time
Online change
Not enabled
*1
setting
Extension distance 15m
* 1 : Can be set in the PLC parameter setting of GX Developer.
* 2 : The relationships between the MC protocol formats and frames are indicated in Table6.52.
Table6.52 Relation between MC protocol formats and frames
Function
Communication in ASCII code
Communication in binary code
Default
9.6kbps, 19.2kbps, 38.4kbps, 57.6kbps,
115.2kbps
Yes, No
No wait, 10ms to 150ms (10ms increments)
Enabled, Not enabled
QnA-compatible 3C frame
QnA-compatible 4C frame
QnA-compatible 4C frame
Setting Range
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Format 4 Format 5
: Usable, : Unusable