Allen-Bradley POINT I/O 1734-232ASC

Publication 1734-UM009A-EN-P - June 2002
Configuring Your RS-232 ASCII Module 2-19
Setting Up the Scanner I/O Receive Size
The 1734-232ASC module automatically calculates the number of
bytes it will send to the DeviceNet master. Its value is determined by a
combination of the incoming data and the options you have selected.
Parameter 13 defines the size of the DeviceNet message to be sent by
the 1734-232ASC module to the master.
Table 2.4 Receive Data Format - Array Data Type
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5-X Byte X+1
(Max = 132)
RX Transaction ID
Byte
Status Byte Reserved Reserved ASCII Data
(max 128 bytes)
<CR>
(Terminator)
Table 2.5 Receive Data Format - Short_String Data Type
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5-X Byte X+1
(Max = 132)
RX Transaction ID
Byte
Status Byte Reserved Length ASCII Data
(max 128 bytes)
<CR>
(Terminator)
Table 2.6 Receive Data Format - String Data Type
Byte 1 Byte 2 Byte 3 Byte 4 Byte 5-X Byte X+1
(Max = 132)
RX Transaction ID
Byte
Status Byte Length (Low Byte) Length (High Byte) ASCII Data
(max 128 bytes)
<CR>
(Terminator)
IMPORTANT
You must set your scanner’s RX (receive) value to
this number of bytes.
IMPORTANT
You must upload this data from the 1734-232ASC
module to view current information or put your
RSNetWorx for DeviceNet into Monitor Mode.
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