Rockwell Automation AutoMax R-Net Processor Module - Manual (Page 27)

4Ć11
returned status will contain an error code. Refer to figure 4.6 for error
codes returned by the GATEWAY_CMD_OK@ function.
Error
Code Description
00 = Error Free
01 = Invalid Command Number
02 = Invalid Parameter/Incorrect Parameter Number
03 = Address Out of Range
04 = Count Error
05 = Reserved for System Use
06 = Reserved for System Use
07 = Reserved for System Use
08 = Illegal Data in Response Message
09 = Response Timeout Error
10 = Reserved for System Use
:
22 = Reserved for System Use
23 = Illegal Register Number
24 = Illegal Number of Registers
25 = Illegal Command Number
26 = Illegal Point
28 = Illegal Slot Number
Figure 4.6Ć GATEWAY_CMD_OK@ Returned Status Error Codes
The task's next instruction will not be executed until the response is
returned or the GATEWAY_CMD_OK@ function times out. Therefore,
the GATEWAY_CMD_OK@ function should not be used in a scanned
task (i.e., a task that can time out).
The format of the GATEWAY_CMD_OK@ functions is as follows:
GATEWAY_CMD_OK@(STATUS%, CMD_CODE%, AM_DROP%,
&
AM_REG$, GTWY_VAR!, NUM_REGS$)
where:
STATUS% is an integer variable name only. It defines the variable
name where the resulting gateway command status is stored. The
status value will contain a zero if successful or an error code if
unsuccessful.
CMD_CODE% is a variable name or expression. This is the command
(1Ć4) sent to the AutoMax RĆNet Processor module.
AM_DROP% is a variable name or expression. This is the device for
which the command is intended. The slot number for the AutoMate is
always encoded in the high byte of the word; the low byte contains
the drop number. (For AutoMate 15/15E and 20/20E Processors, the
slot number is always 0.)
AM_REG$ is a variable name or expression. This variable is a string
describing the starting register in the AutoMate which is to be read or
written.
GTWY_VAR! is a variable name (used with the VARPTR! function) or
expression. This is the physical address of the first register in the
AutoMax RĆNet Processor module's AutoMate image area from which
or to which data is to be read or written.
NUM_REGS% is a variable name or expression. This defines the
number of registers or bits to be transferred.