Yokogawa Touch Screen GP20 User Manual Page 352

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4-32
IM 04L51B01-01EN
Communication Channel
Data Hold Register Data Type
Lower bytes of the input data of channel C001 405001 32-bit signed integer
Higher bytes of the input data of channel C001 405002
| |
Lower bytes of the input data of channel C300 405599
Higher bytes of the input data of channel C300 405600
• There is no decimal place information.
Lower bytes of the input data of channel C001 406001 32-bit floating point
Higher bytes of the input data of channel C001 406002
| |
Lower bytes of the input data of channel C300 406599
Higher bytes of the input data of channel C300 406600
• Note when a client (master) device writes data
Input range: –9.9999E29 to –1E–30, 0, 1E–30 to 9.9999E29
Values outside this range when used in a math channel will result in computation error.
Channel C001 input data 407001 16-bit signed integer
| |
Channel C300 input data 407300
Channel C001 status information 407501
| |
Channel C300 status information 407800
• Status register configuration
This is the same as that of the I/O channel data status information.
Internal Switch
1
Data Hold
Register
Supplementary
Information
Data Type
S001 input data 408001 OFF: 0, ON: Not 0 16-bit signed integer
| | |
S100 input data 408100 OFF: 0, ON: Not 0
1 To control internal switches through Modbus writing, the internal switch must be set to Manual.
See page 1-146 in section 1.18.5, “Setting Internal Switches”.
GX/GP Operation Setting
Data Hold
Register
Supplementary Information Data Type
Starts or stops recording 409001 0: Fixed at 0 when reading
1: Start recording
2: Stop recording
16-bit signed integer
Computation operation 409021 0: Fixed at 0 when reading
1: Start computation
2: Stop computation
3: Reset computation
4: Clear the computation
dropout status display
All alarm ACK 409041 0: Fixed at 0 when reading
1: Clear alarm output
Manual trigger, manual
sample, snapshot, timeout
409051 0: Fixed at 0 when reading
1: Execute manual sampling
2: Generate a manual trigger
3: Take a snapshot
4: Cause a timeout in display
data
5: Cause a timeout in event
data
Synchronize time using
SNTP
409052 0: Fixed at 0 when reading
1: Execute manual SNTP
Start/stop the e-mail
transmission function
409053 0: Fixed at 0 when reading
1: Start e-mail transmission
2: Stop e-mail transmission
Recover Modbus manually 409054 0: Fixed at 0 when reading
1: Manually recover the
Modbus client.
2: Manually recover the
Modbus master.
Continued on next page
4.5 Modbus Function and Register Assignments
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