Toshiba profibus-dp pbdp-110 Manual De Usuario
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If the request was a write, and the write was performed successfully, this will
be indicated to the master by Resp1:Resp0 changing from 0:0 to 1:0. The
parameter number response will equal the accessed parameter number, and
the data written to the drive will be reflected in the data / error code response
word.
be indicated to the master by Resp1:Resp0 changing from 0:0 to 1:0. The
parameter number response will equal the accessed parameter number, and
the data written to the drive will be reflected in the data / error code response
word.
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If an error occurred during the read or write request, this will be indicated to
the master by Resp1:Resp0 changing from 0:0 to 1:1. The parameter
number response will equal the parameter number that the master was
attempting to access, and an error code reflecting the failure cause will be
placed in the data / error code response word. For a list of possible error
codes, refer to section 10.4.
the master by Resp1:Resp0 changing from 0:0 to 1:1. The parameter
number response will equal the parameter number that the master was
attempting to access, and an error code reflecting the failure cause will be
placed in the data / error code response word. For a list of possible error
codes, refer to section 10.4.
6. In order to perform another parameter read or write, the master must once again
send a “no action” code (Req1=0 and Req0=0), and the PBDP-110 must once
again respond with an idle state acknowledge (Resp1=0 and Resp0=0) before the
next read or write action can take place. Until a “no action” code is sent to the
PBDP-110, the interface will ignore all data in the action bits, parameter number
and parameter write data words. Also, as long as the master sends the “no
action” code, the PBDP-110 will loop-back in the parameter number response
word and parameter data / error code response word whatever data is sent to it in
the corresponding output words.
again respond with an idle state acknowledge (Resp1=0 and Resp0=0) before the
next read or write action can take place. Until a “no action” code is sent to the
PBDP-110, the interface will ignore all data in the action bits, parameter number
and parameter write data words. Also, as long as the master sends the “no
action” code, the PBDP-110 will loop-back in the parameter number response
word and parameter data / error code response word whatever data is sent to it in
the corresponding output words.
The above procedure explanation holds true for both drives A and B, using the
respective request and response locations in the output and input data structures.
respective request and response locations in the output and input data structures.
10.4 Register Access Error Codes
When a parameter read or write error occurs, one of the following error codes will be
returned in the parameter data response word:
Error Code
returned in the parameter data response word:
Error Code
Meaning
0x0000 ................ cannot
execute
0x0001 ................ data error (written data value outside of valid range)
0x0002 ................ invalid parameter number
0x0064 ................ attempt to write to a read-only parameter
0x0065 ................ attempt to read from a write-only parameter
0x0066 ................ other / unclassified error