Limitorque
®
Master Station IV EEP-SN4001 FCD LMENIM5010-00-AQ – 03/19
48
Example of a single register write command
Field Unit Command. Start a network ESD operation to field unit number 101. This corre-
sponds to writing the value 1280 to register 45201.
Query: 0106145005008F7B
Response: 0106145005008F7B
Table 7.8 – Function Code 06 First command message breakdown
Query Response
01 MSIV Unit Address 01 MSIV Unit Address
06 Function 06 Function
14 Register Address Hi 14 Register Address Hi
50
1
Register Address Lo 50 Register Address Lo (Register 45201; MOV101)
05 Force Data Hi 05 Force Data Hi
00
2
Force Data Lo 00 Force Data Lo
8F7B Error Check (CRC) 8F7B Error Check (CRC)
Note 1: 1450h equals register address 45201 (field unit 101 command register)
Note 2: 0500h requests the register to be preset with 1280d (Start Network ESD)
Example of a two-command write to a single register
“Move-To” command. Move an actuator at addr4ess 45 to 42% open by first writing the value
of 42 to register 45090. After receiving a response, write the value of 6656 to register 45089.
The actuator will then move to a position of 42% open. First Command:
Query: 010613E2002AACA7
Response: 010613E2002AACA7
Table 7.9 – Function code 06 message breakdown
Query Response
01 MSIV Unit Address 01 MSIV Unit Address
06 Function 06 Function
13 Register Address Hi 13 Register Address Hi (Register 45090; MOV45)
E2
1
Register Address Lo E2 Register Address Lo (Register 45090; MOV45)
00 Force Data Hi 00 Force Data Hi
2A
2
Force Data Lo 2A Force Data Lo
ACA7 Error Check (CRC) ACA7 Error Check (CRC)
Note 1: 13E2h equals register address 45090 (field unit 45 argument register)
Note 2: 002Ah equals 42d
Second Command:
Query: 010613E11A00D618
Response: 010613E11A00D618
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