User manual
Ladder Logic ILX34-AENWG ♦ Point I/O Platform
User Manual Wireless POINT I/O Adapter
Page174of209 ProSoftTechnology,Inc.
September19,2011
1734-232ASC
1734 POINT I/O Catalog Number RSLogix5000 Module Description
1734-232ASC 1 Channel ASCII Interface Module
Input Data Data Type Default Value Valid Data Values
Receive Record Number SINT 0 -128…+127 (0…255)
Status SINT 0
TX FIFO Overflow BIT 0 0=No Error
1=TX FIFO Overflow Error
RX FIFO Overflow BIT 1 0=No Error
1=RX FIFO Overflow Error
RX Parity Error BIT 2 0=No Error
1=RX Parity Overflow Error
Handshake Error BIT 6 0=No Error
1=Handshake Error
New Data Flag BIT 7 0=No New Data
1=New Data Present
Length_Lo SINT 20 -128…+127 (0…128)
Length_Hi SINT 0 0 or 1
Data[128] SINT 0 Received ASCII Message
Output Data Data Type Default Value Valid Data Values
Transmit Record Number SINT 0 -128…+127 (0…255)
Receive Record Number SINT 0 -128…+127 (0…255)
Status SINT 0
TX FIFO Overflow BIT 0 0=No Error
1=TX FIFO Overflow Error
RX FIFO Overflow BIT 1 0=No Error
1=RX FIFO Overflow Error
RX Parity Error
BIT 2 0=No Error
1=RX Parity Overflow Error
Handshake Error BIT 6 0=No Error
1=Handshake Error
New Data Flag BIT 7 0=No New Data
1=New Data Present
Length_Lo SINT 20 -128…+127 (0…128)
Length_Hi SINT 0 0 or 1
Data[128] SINT 0 Transmitted ASCII Message
Transmit Record Number/ Receive Record Number / Length_Lo
Note: 7 data bits allows Transmit / Receive record Number of Length_Lo values of 0 to 127, which
RSLogix 5000 software does support in the signed Short Integer data type SINT (-128 to +127
range).
Note that 8 data bits allows Transmit / Receive record Number of Length_Lo values of 0 to 255.
To enter values from +128 to +255, use this conversion formula:
Desired Decimal Value - 256 = Entered Decimal Value.
Example: for a Transmit / Receive record Number of Length_Lo value of 128, 128 - 256 = -128