User manual

IEC61131 User and Reference Manual
April 22, 2008
233
Device Configuration Read Only Registers
The Device configuration is stored in Modbus input (3xxxx series) registers as
shown below. The registers are read with standard Modbus commands. These
registers cannot be written to. Device configuration registers used fixed addresses.
This facilitates identifying the applications in a standard manner.
Note: These registers must not be used for other purposes in a logic or C
application.
The Device configuration registers can be enabled or disabled by entering TRUE or
FALSE in the enable input. They are disabled until enabled by a logic application.
This provides compatibility with controllers that have already used these registers
for other purposes.
The application IDs are cleared on every controller reset. Applications must run and
set the application ID for it to be valid.
The following information is stored in the device configuration. 2 logic application
identifiers are provided for compatibility with SCADAPack ES/ER controllers that
provide 2 ISaGRAF applications. The second logic application identifier is not used
with other controllers. 32 application identifiers are provided to accommodate C
applications in SCADAPack 330/350 controllers.
Register
Description
39800
Controller ID (padded with nulls = 0), first byte in lowest register, one
byte per register.
39800
Controller ID (ASCII value), first byte.
39801
Controller ID (ASCII value), second byte.
39802
Controller ID (ASCII value), third byte.
39803
Controller ID (ASCII value), fourth byte.
39804
Controller ID (ASCII value), fifth byte.
39805
Controller ID (ASCII value), sixth byte.
39806
Controller ID (ASCII value), seventh byte.
39807
Controller ID (ASCII value), eighth byte.
39808
Firmware version (major*100 + minor)
39809
Firmware version build number (if applicable)
39810
Logic Application 1 - Company ID (see below)
39811
Logic Application 1 - Application number (0 to 65535)
39812
Logic Application 1 - Application version (major*100 + minor)
39813
Logic Application 2 - Company ID (see below)
39814
Logic Application 2 - Application number (0 to 65535)
39815
Logic Application 2 - Application version (major*100 + minor)
39816
Number of applications identifiers used (0 to 32)
Identifiers are listed sequentially starting with identifier 1. Unused
identifiers will return 0.
39817
Application identifier 1 (see format below)
39820
Application identifier 2 (see format below)
39823
Application identifier 3 (see format below)
39826
Application identifier 4 (see format below)