Thermo Scientific 5028i, Instruction Manual

Page: 315 / 330

MODBUS Protocol
MODBUS Parameters Supported
Thermo Fisher Scientific Model 5028
i
Instruction Manual C-11
Register Number Variable
61 & 62 MASS b
63 & 64 BETA ZERO a
65 & 66 BETA ZERO b
67 & 68 BETA b
69 & 70 BETA RAW b
71 & 72 NEPH
73 & 74 EXT ALARMS
75 & 76 BETA REF
77 & 78 BETA REF b
79 & 80 COMMON FLAGS
81 & 82 ALPHA FLAGS
83 & 84 BETA DETECTOR FLAGS
85 & 86 COMP MASS a
87 & 88 COMP MASS b
89 & 90 HIGH VOLT
IMPORTANT NOTE
The addresses in the following tables are Protocol
Data Unit (PDU) addresses. Verify the coil number on your MODBUS
master to ensure that it matches the coil number on the instrument.
s
Note Writing 1 to the coil number shown in the following table will
initiate the “action triggered” listed in the table. This state must be held
for at least 1 second to ensure the instrument detects the change and
triggers the appropriate action.
s
Note
The coils within each coil group in the following table are
mutually exclusive and will not be triggered if there is conflict. Before
you assert (1) one coil in a group, make sure the other coils in the group
are de-asserted (0).
s
Table C–3. Write Coils for 5028
i
Coil Number Action Triggered
100 INVALID
101 MODE a
102 MODE b
103 MODE ab
104 AOUTS TO ZERO
105 AOUTS TO FS