HES
User Manual
HART to Ethernet Gateway System
226-710-00A
September 2018
www.miinet.com
[14]
Moore Industries-International, Inc.
The Dynamic Variables are assigned by default as shown below, but any of the HES’ 74 Device
Variables can be assigned to any of the Dynamic Variables - PV, SV, TV and QV, when
configuring the device. The Loop Current value of the HES is set to NaN (Not a Number).
Table 1.3. HES HART Dynamic Variable Defaults
Dynamic
Variable
DV Code
Description
PV
DV66
Number of field devices channel 1 is communicating with
SV
DV68
Number of field devices channel 2 is communicating with
TV
DV70
Number of field devices channel 3 is communicating with
QV
DV72
Number of field devices channel 4 is communicating with
HES MODBUS Data
The HES provides access to both HART field device data, HES device data and additional
status information.
For each field device, the following information is made available to the MODBUS memory map:
Dynamic Variables (PV, SV, TV, QV) plus Loop Current or Device Variables (1-8)*
Variables’ Quality Stamps
Status and Additional Status** Information
Configuration Data – Serial number, Tag, HART revision, Manufacture and Device Type
Code, EGU, PV Upper & Lower Range
There are various options to organize and compress the HART field device data within the
MODBUS memory map. Compression allows each group of data within the memory map to be
organized in a contiguous manner, which optimizes and minimizes the number of MODBUS
master polling records. The default setting organizes the HART field device data by variable
type and uses no compression.
For the HES, the following information is available within the MODBUS memory map:
System Information (Overall status, information, diagnostics, security, configuration
errors)
Channel status
Dynamic Variables (PV, SV, TV, QV)
Device Variables (1-64)
Variables’ Quality Stamps
Once the HES is fully configured, the HES web pages can be referenced to confirm the
MODBUS registers used for all data.
*2 sets of registers are provided for the device data, one set is 32 bit floating point and the other set is 16 bit integer
values
**The
Acquire Additional Status
setting needs to be enabled for the channel in the HES
