16.4.1.3 Reading configuration:
Reading entry #1
Field
Value
Description
Function
4 (0x04)
Read input register
Address
4160 (0x1040)
4160 + 20*(1-1) = 4160
Number of registers
20 (0x14)
Alarm entry is 20 registers wide
Master frame:
0x01 0x04 0x10 0x40 0x00 0x14 0xF5 0x11
T2S ETH frame: 0x01 0x04 0x28 0x01 0xB8 0x00 0x00 0x01 0x04 0x01
0x01 0x44 0x43 0x20 0x31 0x20 0x3A 0x20 0x56 0x64
0x63 0x5F 0x69 0x6E 0x20 0x4C 0x6F 0x77 0x20 0x53
0x74 0x61 0x72 0x74 0x20 0x20 0x20 0x20 0x20 0x20
0x20 0x20 0x20 0x64 0x36
Configured Value:
0x01B8
440
Validity:
0x0000
PARAM_OK (see 16.3.4, page 85)
Parameter ID:
0x0104
260
Units:
0x0101
unit is dV (0.1V) (see 16.3.4, page 85)
String description:
DC 1 : Vdc_in Low Start
Reading an invalid entry
Let’s assume that entry #189 is invalid
Field
Value
Description
Function
4 (0x04)
Read input register
Address
7920 (0x1EF0)
4160 + 20*(189-1) = 7920
Number of registers
20 (0x14)
Alarm entry is 20 registers wide
Master frame:
0x01 0x04 0x1E 0xF0 0x00 0x14 0xF6 0x1E
T2S ETH frame:
0x01 0x04 0x28 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF 0xFF
0xFF 0xFF 0xFF 0xF0 0x04
Due to internal memory organization, the configuration might have valid entries interleaved with invalid ones. Thus, in
order to read all configurations, one should read all entries to determine which ones are valid and which ones are not.
88
– Monitoring T2S - ETH User Manual – v1.4
Annex 3: Modbus
Содержание T2S-ETH
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