Technical data

56 Commissioning WAGO-I/O-SYSTEM 750
750-652 Serial Interface RS-232 / RS-485
Manual
Version 1.3.0
Control requests data exchange:
Table 27: Data Exchange
Control byte 0
Control byte 1
Output byte 0
Output byte 1
'0000.0000'
'0000.0000'
XX
XX
The IA bit is reset by the I/O module.
Table 28: I/O Module Is Ready
Status byte 0
Status byte 1
Input byte 0
Input byte 1
'0XXX. X0XX'
'0XXX. 1XXX'
XX
XX
The I/O module is ready.
8.3.3 Transmission of the Character String "Hello World!"
The eleven characters, the reset initialization bit, and the length 11 are
transmitted.
Table 29: Character string "Hello World"
Control byte 0
Control byte 1
Output byte 0
Output byte 1
'0011.0000'
'0000.0001'
"H" (0x48)
"a" (0x60)
Output byte 2
Output byte 3
Output byte 4
Output byte 5
"1" (0x6C)
"1" (0x6C)
"o" (0x6F)
0 x 20
Output byte 6
Output byte 7
Output byte 8
Output byte 9
"W" (0x87)
"e" (0x65)
"1" (0x6C)
"t" (0x74)
Output byte 10
Output byte 11
Output byte 12
Output byte 13
"!" 0 x 21
XX
XX
XX
The transmit request bit TR is inverted.
Table 30: Transmit Request Bit TR
Control byte 0
Control byte 1
Output byte 0
Output byte 1
'0011.0001'
'0000.0001'
"H" (0x48)
"a" (0x60)
Output byte 2
Output byte 3
Output byte 4
Output byte 5
"1" (0x6C)
"1" (0x6C)
"o" (0x6F)
0 x 20
Output byte 6
Output byte 7
Output byte 8
Output byte 9
"W" (0x87)
"e" (0x65)
"1" (0x6C)
"t" (0x74)
Output byte 10
Output byte 11
Output byte 12
Output byte 13
"!" 0 x 21
XX
XX
XX
The data was transmitted to the output buffer as soon as TA = TR. Then additional
characters can be transmitted.
Table 31: Data Transfer
Status byte 0
Status byte 1
Input byte 0
Input byte 1
'0XXX.XXX0'
'0XXX. 1XXX'
XX
XX
The data transfer is still
running.
'0XXX.XXX1'
'0XXX. 1XXX'
XX
XX
When the data transfer has
taken place, the data is
transmitted via the serial
interface.