ICP CON I-7550E, Руководство пользователя, Страница: 24 / 102

I-7550E PROFIBUS/Ethernet Converter User Manual
(Version 1.00, June/2014)
PAGE: 24
module before the other modules, else the I-7550E will send the diagnostic
messages to PROFIBUS Master and the system will be abnormal. Section 3.3.1
and 3.3.2 will descript the property in detail.
3.3.1 Output Data Area
The I-7550E will handle the data from the PROFIBUS Master according to the
first 20 Bytes of output data. There are three modes for I-7550E: Idle Mode
、
Read/Write Mode and System Control Mode, it depends on the value of the first
Byte, as shown in
Table 9
、
Table 10
、
Table 11.
Table 9 Output data area in Idle Mode (Byte 0 =0)
Byte Data type Description
System
setting
module
0 Byte Operation mode
1 Byte
Not available
2 Byte
3 Byte
4 Word
6 Word
8 Byte
9 Byte
10 Byte
11~19 Byte
Output
module
20~239 Byte
When the value of Byte 0 is zero (Idle Mode), the I-7550E won’t transfer data
from PROFIBUS Master to Ethernet device. But it still can receive data from
Ethernet device and will put data into the Ethernet FIFO buffer.
Table 10 Output data area in Read/Write Mode (Byte 0 =1)
Byte Data type Description
System
setting
0 Byte
Operation mode
1 Byte
Trigger Byte