Table 38: Transmission Of A Block Of More Than 512 Bytes - WAGO 750 Series Manual

WAGO-I/O-SYSTEM 750
750-652 Serial Interface RS-232 / RS-485

Table 38: Transmission of a block of more than 512 bytes

Control byte 0
'0110.1001'
Status byte 0
'0XXX.X0X1'
Control byte 0
'0110.1000'
Status byte 0
'0XXX.X0X0'
Control byte 0
'0110.1001'
Status byte 0
'0XXX.X0X1'
Status byte 0
'0XXX.X0X1'
Control byte 0
'0110.1001'
Status byte 0
'0XXX.X0X1'
Status byte 0
'0XXX.X0X0'
Status byte 0
'0XXX.X0X1'
Control byte 0
'0XXX.0XX0'
*)
The table shows the transmission method from the time at which more than 500 bytes is in the
output buffer.
Important Note:
An X is used if the value is not relevant here.
An XX means that the entire value is not relevant.
Manual
1.2.0
Control byte 1
'0XXX. X101' Controller fills the output buffer with 46 bytes and set bit
3 (SC) of the control byte 0 for the start of the
transmission.
Bit 3 (SC) of the control byte 0 must always be set if the
controller transmits more than 512 bytes of data to the
I/O module.
Status byte 1
'0000. 1XXX' I/O module confirms the acceptance of the data.
Control byte 1
'0XXX. X101' Controller takes bit 0 (TR) of the control byte 0 back.
Status byte 1
'0XXX. 0XXX' I/O module begins with the data transmission via the
serial interface.
Control byte 1
'0XXX. X101' Controller fills the output buffer with another 46 bytes of
data.
Status byte 1
'0000. 0XXX' I/O module confirms the acceptance of the data.
Status byte 1
'0000. 1XXX' All data saved in the output buffer is transmitted via the
serial interface.
Control byte 1
'0XXX. X101' Controller fills the output buffer with another 46 bytes of
data.
Status byte 1
'0000. 0XXX' I/O module confirms the acceptance of the data.
Status byte 1
'0XXX. 0XXX' I/O module continues the data transmission via the serial
interface.
Status byte 1
'0000. 1XXX' All data saved in the output buffer is transmitted via the
serial interface.
Control byte 1
'0XXX. 1XXX' Controller takes bit 3 (SC) of the control byte 0 back.
Commissioning
*)
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