Publication 1747-RM001G-EN-P - November 2008
SLC Status File B-51
S:34/0 Dynamic Config DH-485 Passthru Disabled Bit
When channel 0 is configured for DH-485 protocol, this bit
provides the capability to pass received packets between
channels. When set, the processor does not support
passthru. When reset, the processor allows packets to be
passed from one channel to the other. Only packets that
contain the Internet network layer remote MSG packets and
whose Destination Link ID equals that specified for the
opposite channel will be passed. The default is reset.
The default Link ID for channel 0 is one. The default Link ID
for channel 1 is two.
•••
S:34/1 Static Config DH+ Active Node Table Enable Bit
This bit enables processing of the DH+ active node table.
When set, the DH+ active node table is processed. When
clear, the DH+ active node table is not processed. The
default is clear.
This bit is evaluated upon each entry into the REM Run
mode. Note that the processor updates individual status
words S:83 to S:86.
•
S:34/2 Dynamic Config Floating Point Math Flag Disable Bit
This bit disables the processing of math flags when using
floating point math (F8:). The math flags effected are
Overflow (S:0/1), Zero (S:0/2), Sign (S:0/3), and the Minor
Error Overflow Trap bit (S:5/0). When the bit is clear, the
math flags are processed. When the bit is set, the math
flags are cleared except for the Minor Error Overflow Trap
bit which remains in its last state. The Carry Flag (S:0/0) is
reserved for internal use during all floating point operations.
The default is clear.
Instructions effected by floating point include ADD, SUB,
MUL, DIV, NEG, SQR, and MOV. Setting this bit reduces the
execution times for the above instructions. This bit is
evaluated when each instruction is executed.
••
S:34/3 Dynamic Config Global Status Word Transmit Enable Bit
When this bit is set, the Global Status Word at S:99 is
transmitted with every DH+ token pass. When clear, the
token is passed without the Global Status Word.
•
S:34/4 Dynamic Config Global Status Word Receive Enable Bit
When this bit is set, the processor collects the Global Status
Word being transmitted by other devices on the DH+
network and stores them in the Global Status File
(S:100-S:163). When clear, the processor ignores the Global
Status information from other devices on the network.
•
Table B.4 Status File Functions (Continued)
Address Classification Description Fixed
5/01
5/02 5/03 5/04 5/05
To Next Page
Loading...
Need help?
General
