Setup
Document No. D106-009
Page 24 of 76
Revision 1.15
3.4.
MODBUS PARAMETERS
The Modbus parameters will be configured by Slate.
Refer
to the additional information
section for documentation and installation links for Aparian Slate. The Modbus parameter
configuration consists of a general configuration as well as a serial configuration. When
downloading this configuration into the module it will be saved in non-volatile memory that
persists when the module is powered down.
NOTE:
When a firmware upgrade is performed the module will clear all
Modbus configuration and routing maps.
The general configuration consists of the following parameters:
Parameter
Description
Instance Name
This parameter is a user defined name to identify between various Modbus Routers.
Description
This parameter is used to provide a more detail description of the application for the
module.
Major Revision
The major revision of the module
Mapping Mode
The mapping mode will determine how the Modbus messages are routed.
Reactive Tag mode
In Reactive Tag mode the module will automatically route the Modbus message and
function to the appropriate pre-configured Logix tag. Modbus communication in this
mode is initiated by the remote Modbus device.
Scheduled Tag mode
In Scheduled Tag mode, the Modbus Router will initiate the exchange between the
remote Modbus device and Logix. Either by reading data from a Modbus device and
writing it into a preconfigured Logix tag or vice versa. Modbus communication in this
mode is initiated by the Modbus Router.
Unscheduled mode
In Unscheduled mode the Modbus Router routes Logix messages to the remote
Modbus device and returns the result. There is little configuration required in the
Modbus Router as the routing information is configured by Logix for each message
transaction. Modbus communication in this mode is initiated by Logix.
Refer to the message routing section of the document for a details explanation of the
routing operation.
Controller Type
This option will allow the user to communicate to either ControlLogix/CompactLogix
or SLC/MicroLogix via Modbus. The mapping section will provide more details
regarding the how to enter and use the target tag for each of the controller sets.