20
Shenyang Guangcheng Technology Co., Ltd.
CANopen bus coupler
—
GCAN-IO-8000
Product data sheet
Shenyang Guangcheng Technology CO.LTD.
Correspondence between GC-3804 temperature and CAN data
Data
displayed on
the CAN
bus
Low byte C8
High byte 00
coefficient
200
（
0xC8
）
x0.1
0
（
0x00
）
x25.6
Temperatur
e value
20
℃
Correspondence between GC-3804 temperature and CAN data
Data
displayed on
the CAN
bus
Low byte 2C
High byte 01
coefficient
44
（
0x2C
）
x0.1
1
（
0x01
）
x25.6
Temperatur
e value
30
℃
When the GCAN-IO-8000 module sends out TPDO data, the frame ID is 0x180+node
ID (Node ID), and the data length is 8. If PT100 is not connected, the CAN data of the
corresponding channel will be displayed as FF 7F.
4.5 Equipped with multiple sets of modules at the same
time
If GCAN-IO-8000 is equipped with multiple sets of GC-1008 modules at the same
time, then we will number them according to their distance from GCAN-IO-8000
from near to far, and the nearest one is No. 1. The TPDO data sent by the
GCAN-IO-8000 coupler will be sent according to the following table. For example,
when the GCAN-IO-8000 node number is 3 and it is equipped with 9 GC-1008
modules at the same time, you will receive two sets of data with frame IDs 0x183 and
0x283. Among them, the eight data bytes with the frame ID of 0x183 correspond to
the GC-1008 module No. 1-8 in turn; the one data byte with the frame ID of 0x283
corresponds to the GC-1008 module No. 9.
Table 4.1 Correspondence between multiple sets of GC-1008 modules and CAN data
Frame ID
Frame data
0x180+Node ID
1
2
3
4
5
6
7
8
0x280+Node ID
9
10
11
12
13
14
15
16
0x380+Node ID
17
18
19
20
21
22
23
24
0x480+Node ID
25
26
27
28
29
30
31
32
