Dycor SmartVue Process Control Monitor, Operator'S Manual

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SmartVue Operator’s Manual
84
10-0004-R13
Refer to Appendix 0 for the complete list of Modbus Input Registers that are available for
reading SPN data.
When reading the DTC data, up to 16 separate ECUs can be simultaneously monitored.
With each ECU, access to its status, lamp state, and the number of codes that have been
produced is available. Up to 10 DTCs along with their related FMI (Fault Mode
Identifier) and OC (Occurrence Count) information can be accessed for each ECU.
The table below shows the registers and accompanying data for the first ECU followed
by two sets of DTC data (four registers each). Refer to Appendix 21.4.6 for a more
complete table.
Table 12-1 DTC Modbus register mapping
Address Register ID Modicon Modicon Data
1100 1101 31101 41101 STATUS1
ECU1
1101 1102 31102 41102 ECU1
1102 1103 31103 41103 LAMP1
1103 1104 31104 41104 NCODES1
DTC1
1104 1105 31105 41105 DTC1-1_H
1105 1106 31106 41106 DTC1-1_L
1106 1107 31107 41107 FMI1-1
1107 1108 31108 41108 OC1-1
DTC2
1108 1109 31109 41109 DTC1-2_H
1109 1110 31110 41110 DTC1-2_L
1110 1111 31111 41111 FMI1-2
1111 1112 31112 41112 OC1-2
… … …
…
…
12.4 User Registers
The SmartVue has a set of Modbus registers that can be written to during Modbus
communication called user registers. These are the only Modbus registers can be used as
the inputs to a process or control. There are 8 of each data type and there are 5 data
types. The data types are:
16-bit unsigned integer
16-bit signed integer
32-bit unsigned integer
32-bit signed integer
32-bit float
There is a separate screen for each data type and each screen displays the real-time
current value and the number of seconds since the value was last updated. The seconds
since update can be used in a process or control to optionally use a different value if the
updates have stopped. Two of the User Register screens are shown below.