GF U1000 V2 Wallmount WM Instrucciones De Uso página 38

Troubleshooting
8.3 Example error messages
Error Message Error Meaning
None or 0 None
2 Hot sensor error (HM versions only)
4 Cold sensor error (HM versions only)
6 Hot and Cold sensor error (HM versions only)
8 No flow signal
10 Hot error and no flow signal (HM versions only)
12 Cold error and no flow signal (HM versions only)
14 Hot and Cold error and no flow signal (HM versions only)
8.4 Modbus Error Messages
Address
Test case
[1 byte]
No error 0x01
Incorrect
function 0x01
request
incorrect
register 0x01
start
Incorrect
register 0x01
length
worker is
0x01
busy
incorrect
0x01
CRC-16
worker is
0x01
busy
incorrect
0x01
CRC-16
8.5 Flow errors
A signal strength of less than 40% indicates poor set up of the instrument, and the installation
should be checked or possibly moved to a different site.
8.6 Flow warnings
A signal strength of less than 40% indicates poor set up of the instrument, and the installation
should be checked or possibly moved to a different site. A negative flow is indicated by an"!" being displayed on the top line in-
stead of a "*".
38
Command Start Register
[1 byte] [2 bytes]
0x03 0x00
0x0C 0x00
0x03 0x00
0x03 0x00
0x03 0x00
0x03 0x00
0x03 0x00
0x03 0x00
Transmitter
Length
(no of registers)
[2 bytes]
0x00 0x00
0x00 0x00
0xEF 0x00
0x12 0xFF
0x00 0x00
0x20 0x00
0x00 0x00
0x20 0x00
User Manual
CRC-16
[2 bytes]
0x20 0x44
0x20 0x10
0x20 0x75
0x02 0x25
0x20 0x44
0x20 0x44
0x20 0x44
0x20 0x44
0x12
0x13
0xE7
0xFE
0x12
0xFF
0x12
0xFF