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Chapter
6
Operating Instructions
Flexi Soft Gateways
144
© SICK AG • Industrial Safety Systems • Germany • All rights reserved
8012664/XB29/2013-06-11
Subject to change without notice
Fieldbus gateways
TxPDO 1…4
A transmit PDO transports data from the CANopen gateway to a CANopen device.
CAN ID
DLC
Data
181-1FF
8
B1 B2 B3 B4 B5 B6 B7 B8
281-2FF
8
B9 B10 B11 B12 B13 B14 B15 B16
381-3FF
8
B17 B18 B19 B20 B21 B22 B23 B24
481-4FF
8
B25 B26 B27 B28 B29 B30 B31 B32
B1…B32:
CAN telegram bytes as mapped into the network input data using the Flexi Soft
Designer software (see 7.3 “Customizing the operational data (Flexi Soft to Network)” on
page 175).
The gateway sends one or more TxPDOs if at least one of the following occurs:
At least one input or output byte has changed its value and the transmission type for
the TxPDO containing this byte has the value 255.
At least one input or output byte has changed its value
and
the gateway receives a Sync
command
and
at least one TxPDO has the transmission type 0.
If the transmission type is n = 1…240, n Sync commands are required for the TxPDO to
be sent.
The transmission type for a TxPDO is 254 or 255 and the event timer (SDO 1800,5 for
TxPDO1) has a value N > 0. In this case this TxPDO is sent every N ms.
A TxPDO can also be polled via remote transmission request (RTR). This requires a CAN
telegram to the gateway containing the CAN ID of the desired TxPDO with DLC = 0 and
RTR = 1.
For all transmission methods the device operating mode must be set to “Operational” (see
Tab. 101 “Network management for all NMT slaves” on page 137).
RxPDO 1…4
A receive PDO transports data from a CANopen device to the CANopen gateway.
CAN ID
DLC
Data
201-1FF
8
B1 B2 B3 B4 B5 B6 B7 B8
301-2FF
8
B9 B10 B11 B12 B13 B14 B15 B16
401-3FF
8
B17 B18 B19 B20 B21 B22 B23 B24
501-4FF
8
B25 B26 B27 B28 B29 B30 B31 B32
B1…B32:
CAN telegram bytes as mapped into the gateway input data using the Flexi Soft
Designer software.
The transmission type 255 is pre-set for all RxPDOs. This means that the gateway forwards
the received RxPDO data immediately to the main module. This setting cannot be changed.
Tab. 111: TxPDO 1…4
Tab. 112: RxPDO 1…4