GE Industrial Solutions POWER LEADER ModBus Monitor - Manual (Page 47)

POWER LEADER Modbus Monitor
Chapter 7 – Advanced Configuration
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Chapter 7
Advanced Configuration
As we discussed earlier, the Modbus Monitor supports
three classes of device types, tightly integrated devices,
hybrid devices and generic devices. Each class of device
is described in the table below. This chapter describes how to create hybrid and generic
device types, enter and modify their register maps and
customize the screens displayed at the Monitor for these
device types.
Device Class What’s it used for? How’s it created?
Tightly Integrated Devices Displaying standard devices at the Monitor. All register maps and display screens are built into the
Monitor
Hybrid Devices May be used to create a copy of a TID and then
customize display screens. Supports Events
Handling and Special Handling Registers. Created by saving a tightly-integrated device type as a
new device type WITH Link Events checked.
Generic Devices Allows a user to add any kind of device type so
long as the device supports register-based Modbus
RTU communications via RS-485, and the data
formats used are supported by the Modbus Monitor
(see Appendix C). May be created from scratch.
May also be created by saving a tightly-integrated
device type as a new device type WITHOUT Link
Events checked.
To create a new hybrid device type or generic device
type based on a tightly integrated device (TID), you’ll
merely save a TID as a new device type with event
To create and define a new generic device type from
scratch, you should have on hand the Modbus RTU
register map for the device. The register map is a
complete listing of the addresses in the device where
data is stored. From this list, you will be able to extract
the registers for the data you are interested in.
The Monitor offers the same flexible support of generic
devices whether operating as a stand-alone host device
or as part of a PMCS network. If you are using PMCS
and wish to incorporate a generic device, it is
recommended that you define the device type at the
PMCS DDE Server first, then use the Modbus Monitor
Configuration Tool to set up the new device type for the
Monitor. For information on defining a new device type
at the PMCS DDE Server, refer to GEH-6510, the PMCS
DDE Server User’s Guide.
Step 1: Define a New Device Type
The Define New Device Type option from the Monitor
Configuration Tool main menu allows you to create new
device types. The New Device Type screen is shown in
Figure 44.
Figure 44. Monitor Configuration Tool: New Device Type dialog.
Enter a name for the new device type. The name must be
at least 4 and no more than 20 alpha-numeric characters,
and may not include special characters such as \ / , ‘ * +.
Select the appropriate operation mode (16-bit or 32-bit)
from the Operation Mode pull-down list. (The device’s
documentation should provide this information.)
Click OK to accept the new device type, or Cancel to
exit.