62 Commissioning
WAGO-I/O-SYSTEM 750 XTR
750-652/040-000 Serial Interface RS-232/RS-485 XTR
Manual
Version 1.3.0
Table 40: Receive Data
Status byte 0 Status byte 1
Input byte 0
Input byte 1
0-xxx X (00x)
'0XXX. 1XXX'
XX
XX
There are no receive data
available.
'0XX1. 001X'
'0XXX. 1XXX'
"W"
"A"
The data is available in the
input bytes.
After the 2 characters have been processed, RA is inverted.
Table 41: Receive 2 Characters
Control byte 0
Control byte 1
Output byte 0
Output byte 1
'0XXX XX1X
'0XXX.XXXX'
XX
XX
The receipt of additional characters is indicated by different values for RA and RR.
Table 42: Receipt of Additional Characters
Status byte 0 Status byte 1
Input byte 0
Input byte 1
'0XXX. X01X'
'0XXX. 1XXX'
XX
XX
There are no receive data
available.
'0XX1. 000X'
'0XXX. 1XXX'
"G"
"O"
The data is available in the
input bytes.
After the characters have been processed, RA is inverted.
Table 43: Output Process Image After Data Transfer
Control byte 0
Control byte 1
Output byte 0
Output byte 1
'0XXX XX0X
'0XXX.XXXX'
XX
XX
8.3.5
Operation with Continuous Send
8.3.5.1 Transmission of a Block of One to 512 Bytes
The output buffer is filled up with data up to number n (n ≤ 512 bytes)
To transmit the buffer content, the bit 3 (SC) of the control byte 0 is set by the
controller. The I/O module begins with the data transmission and the bit 3 (BUF_E)
of the status byte 1 is reset.
If all data is transmitted, the bit 3 (BUF_E) of the status byte 1 is set.
The controller takes bit 3 (SC) of the control byte 0 back from the controller.
The end of the transmission from the I/O module is detected this way.
