Communication Detail Settings - Mitsubishi Electric GOT2000 Series Connection Manual

7.4.2

Communication detail settings

Make the settings according to the usage environment.
■1. Serial (MELSEC)(GT27, GT25, GT23)
Item
Transmission Speed
Retry
Timeout Time
Delay Time
*3
Format
*4
Monitor Speed
Servo axis switching GD
device head No.
*1
*2
*3
*4
7 - 28
7.4 GOT Side Settings
Set this item when change the transmission speed used for communication with
the connected equipment. (Default: 115200bps)
When the setting exceeds the limit of the connected equipment, communication is
performed at the fastest transmission speed supported by the connected
equipment.
Set the number of retries to be performed when a communication timeout occurs.
When receiving no response after retries, the communication times out.
(Default: 0time)
Set the time period for a communication to time out. (Default: 3sec)
Set this item to adjust the transmission timing of the communication request from
the GOT. (Default: 0ms)
Select the communication format. (Default: 1)
Set the monitor speed of the GOT.
This setting is not valid in all systems. (Default: Normal)
Set the servo axis switching GD device head No. (Default: 10)
For details, refer to the following POINT.
➠
(3) Indirect specification of the servo axis No.
This is effective when collecting a large data on other than the monitor screen (logging, recipe function, etc.). However, when
connecting to Q00J/Q00/Q01CPU, the sequence scan time may be influenced. If you want to avoid the influence on the
sequence scan time, do not set [High(Normal)].
(High performance is hardly affected)
Set this item if you want to avoid the influence on the sequence scan time further than the [Middle] setting when connecting to
Q00UJ/Q00U/Q01U/Q02UCPU or Q00J/Q00/Q01CPU.
Refer to the following POINT.
When using a global label, to read or write more than 235 two-byte characters, set the [Monitor speed] to [High (Standard)] or
[Middle].
If [Monitor speed] is set to [Low], a system error occurs when reading or writing.
For details, refer to the following manual.
➠
GT Designer3 (GOT2000) Screen Design Manual
POINT POINT POINT
Setting [Format]
This setting is required for replacement of F900 series with GOT2000 series.
(1) To change the communication settings of the serial communication module which is
connected to F900, set as follows.
The value of Transmission Speed can be set to 115200bps.
(a) [Intelligent function module switch setting] of PLC
Switch No.
Switch 1
Switch 2
Switch 3
Switch 4
Switch 5
➠
7.5 PLC Side Setting
Description
CH1 side
0000H
0000H
-
-
0000H
Range
9600bps, 19200bps,
38400bps, 57600bps,
115200bps
0 to 5times
1 to 30sec
0 to 300 (ms)
1, 2
*1
High (Normal)
Middle
*2
Low
0 to 65520
CH2 side
-
-
0000H
0000H
0000H