ICP CON I-7550E, Руководство пользователя, Страница: 25 / 102

I-7550E PROFIBUS/Ethernet Converter User Manual
(Version 1.00, June/2014)
PAGE: 25
Byte Data type Description
module 2 Byte Control Byte
3 Byte
Target’s Connection ID
4 Word Write Message ID
6 Word
Total length of Write Message
8 Byte
Total numbers of Message Index
9 Byte
The index of current Message
10 Byte
The length of current Message
11~19 Byte Reserved
Output
module
20~219 Byte
Output data to Ethernet Device
Byte 0: Operation Mode
0: Idle mode. In this mode the I-7550E won’t transfer any output data, but it
still receive input data when Ethernet device transfers data to the I-7550E.
The data from Ethernet will be stored in FIFO buffer.
1: Read/Write mode. This is normal operation mode of the I-7550E. When
the user want to transfer data between PROFIBUS Master and Ethernet, it
should be in this mode.
2: System control mode. In this mode the user can get/set the system
information.
Byte 1: Trigger Byte
When this byte is changed, PROFIBUS Master device will send data of
output module to the Ethernet device.
The user must increase this byte in order (ex. 0->1, 1->2, …255->0) or else
the I-7550E will send a diagnostic message to the PROFIBUS Master (Please
refer to section 4.4 Diagnostic messages.)
Byte 2: Control Byte
Bit 0: When this bit is set (value =1), diagnostic message sent by the I-7550-
E will all be cleared. And the error message will also be cleared.(Error
message please refer to section 5.3)
Bit 1: When this bit is set, all data in PROFIBUS FIFO buffer will be cleared.
Bit 2: When this bit is set, all data in Ethernet FIFO buffer will be cleared.
Bit 3: When this bit is set, the Read message ID and total number of Message
that have been written (Please refer to the description of Byte 1 and