Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 144)

Publication 1760-UM003A-EN-P - September 2005
7-64 Pico GFX Control Commands
Analysis – error codes via
PicoLink The Pico GFX basic unit will return a defined error code in the event
of an incorrectly selected operating mode or an invalid telegram. The
error code transferred has the following structure:
3 – 6 4 – 7 Data 1 – 4
Read operation 00 depending on
index,Table 6.196
Write operation depending on
index,Table 6.196 00
Table 6.195 Operand overview
Index
(hex) Operand read write
00 Bit IO, Table 6.196 x
01 Mode/Parameter – –
02 Input value I1 x
c
(1)
(1) The value can only be written if it is assigned to a constant in the program.
03 Upper limit value SH x
c
1
04 Lower limit value SL x
c 1
05 Output value: outputs the value present
at input I1 within the set limits. QV x
Table 6.196 Index 0 – Bit IO
Bit 7 6 5 4 3 2 1 0
FB output Data 3 – – – – – – –
EN
(1)
(1) Activates the function block on status 1.
Table 6.194 Telegram Structure
Byte Meaning Value (hex), sent by
Master Slave Master Slave