6 Object dictionary for XN-312-GW-CAN gateway
6.8 Process input data transmission
96
Gateway XN-312-GW-CAN
06/16 MN050003-EN www.eaton.eu
Table 30:
Structure of PDO mapping entries
6.8 Process input data transmission
Together with objects 1A00
hex
to 1A0F
hex
, objects 1800
hex
to 180F
hex
define
which input data should be transmitted with which priority and which trans-
mission type using TPDO transfers.
"TPDO" stands for "transmit process data object" and refers to process data
transmitted by the gateway.
Object 1800
hex
defines the priority, the minimum transmission inhibit time,
the maximum pause between two transmissions, and the transmission type
for TPDO
1
. Object 1A00
hex
specifies the object index, sub-index, and data
length for the data that needs to be transmitted with TPDO
1
.
Accordingly, object 1801
hex
provides this information for TPDO
2
together
with object 1A01
hex
, etc.
The data's priority is defined with the identifier/COB-ID.
A default mapping is already configured for all PDOs: 1600 to 160F and 1A00
to 1A0F. The COB-ID that needs to be used is already configured for all
PDOs as well: 1400/1 to140F/1 and 1A00/1 to 1A0F/1. The first 4 PDOs, 0 to
3, are enabled and allowed to transmit. PDOs 4 to F need to be manually
enabled.
This means that an XN300 station with a maximum of 64 digital inputs and
12 analog inputs will take care of the TPDO-based transmission of process
input data by itself.
6.8.1 Objects 1800
hex
to 180F
hex
Transmit PDO Parameter
Objects 1800
hex
to 180F
hex
define the priority, the transmission type, the
minimum inhibit time, and the maximum pause between two transmissions
for TPDO1 to TPDO32.
The priority is defined with the identifier/COB-ID using sub-index 01
hex
. The
most significant bit in sub-index 01
hex
can be used to define the remaining
content as invalid/valid. This means that the corresponding most significant
hex number is >8.
The transmission type is defined using sub-index 02
hex
shows the available transmission types..
Sub-index 03
hex
defines the minimum transmission inhibit time.
Sub-index 05
hex
is used to define the maximum pause between two trans-
missions.
msb
lsb
Object index (16 bits)
Sub index (8 Bit)
Object length (8 bits)
Summary of Contents for XN-312-GW-CAN
Page 1: ...Manual CANopen Gateway XN 312 GW CAN 06 16 MN050003 EN ...
Page 4: ...II ...
Page 14: ...10 Gateway XN 312 GW CAN 06 16 MN050003 EN www eaton com ...
Page 374: ...9 What Happens If 370 Gateway XN 312 GW CAN 06 16 MN050003 EN www eaton eu ...
Page 388: ...384 Gateway XN 312 GW CAN 06 16 MN050003 EN www eaton eu ...