User's Manual

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19
Register starting address: It is the Modbus register number. Modbus register holds 2-byte (16-bit)
information, so 32-bit floating value and integer value need 2 Modbus registers. Field device state
(HART State) is 1-byte data, and it represents register s high byte, and low byte is not effective.
Each data point has the only Modbus register number.
Register No.:
No. 40001~49000 registers are used for floating value or integer value.
No. 30001~39000 registers are used for device state (HART State) (high byte effective)
No. 10001~19000 registers are kept for Boolean type value (bit, coil, binary system, etc.).
HART Tag: Long tag for wireless field device.
Variable: Variable name of wireless field device. Please refer to
Table 4-1
.
Device ID:
Long address of wireless field device that generates data. Note: Device ID is not advised
user to fill in. When selecting device label, device ID will be automatically mapped.
Status:
Used for data point value that turns Modbus output drive into 1. Such as, if data point
report is true or false, True status will be reported 1 when it is True; True status will be reported 0
when it is False. And False status will be reported 0 when it is True; False status will be reported 1
when it is False. Only No.10001-19000 registers (Boolean, bit, coil, binary, etc.) need Status.
Invert:
Selecting the check box will invert Modbus output from 1 to 0, and from 0 to 1. Invert is
only used for Boolean value of No.10001-19000 registers.
Table 4-1 Available Device Variable
Parameter Description Data Type
PV Primary value 32-bit floating
SV Second primary value 32-bit floating
TV Third primary value 32-bit floating
QV Fourth primary value 32-bit floating
Device Variable
Code
Device variable 32-bit floating
PV_HEALTHY PV healthy state Boolean
SV_HEALTHY SV healthy state Boolean
TV_HEALTHY TV healthy state Boolean
QV_HEALTHY QV healthy state Boolean
Device Variable
Code _ HEALTHY
Device variable healthy state Boolean
State Wireless communication state Boolean
Hart State Device running state 8-bit integer
PV, SV, TV and QV (dynamic variables) change when the device type changes and they are
important dynamic variables for HART device. Please refer to HCF_SPEC_99 for more details.
Device Variable Code is device variable code character string, on behalf of some device variable,
specific values refer to HCF_SPEC_183 Table20.
**_HEALTHY parameter is the healthy state indications for dynamic variables. The parameters