Rockwell Automation 1760-DNET Pico DeviceNet Communications Module User Manual - Manual (Page 82)

Publication 1760-UM003A-EN-P - September 2005
7-2 Pico GFX Control Commands
The master transmits a control command to initiate data exchange
between the communication partners. The slave always returns an
answer to this request, which indicates whether data has been
exchanged or not. An error code will be returned if data exchange has
failed. This code is precisely defined in the ODVA specifications.
Version history The following table provides an overview of modifications and new
features of the different Pico device versions:
Read/write date and time
TIP
The operating mode of the basic unit must
correspond with the status indicated at the LEDs
when the various parameters are being set.
Effect on PicoLink Pico GFX device version
From 02 From 04 From 05
Support for complete PDO access
R data writable j j j
S data readable j j j
Support for complete SDO access
Function blocks – MR, A, AR, BV, C, CF, CH, CI,
CP, D, DB, GT, HW, HY, OT, PT,
SC, T, BC, BT, DC, FT, LS, NC,
PW, ST, VC
Image data
Read – IW, IA, ID, QW, QA, P, RW, SW,
M, MB, MW, MD
Write – QW, QA, M,
MB, MW, MD M, MB, MW,
MD
Clock functions – j j
Rule option for winter/summer
(DST) time change – – j
TIP
Refer to real-time clock information in publication
1760-UM001.