Allen-Bradley Rockwell Automation 1734-AENT - Page 136

Publication 1734-UM011A-EN-P - February 2004
C-40 1734-POINT I/O Module/RSLogix 5000 Controller Tag Reference
1734-232ASC
1 Channel ASCII Interface Module
Input Data Data Type Default
Value
Valid Data Values
Receive Record Number SINT 0 -128 to +127 (0 - 255)
Status
TX FIFO Overflow
RX FIFO Overflow
RX Parity Error
Handshake Error
New Data Flag
SINT
BIT 0
BIT 1
BIT 2
BIT 6
BIT 7
0
0=No Error
1=TX FIFO Overflow Error
0=No Error
1=RX FIFO Overflow Error
0=No Error
1=RX Parity Overflow Error
0=No Error
1=Handshake Error
0=No New Data
1=New Data Present
Length_Lo SINT 20 -128 to +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 to +127 (0 - 255)
Receive Record Number SINT 0 -128 to +127 (0 - 255)
Status
TX FIFO Overflow
RX FIFO Overflow
RX Parity Error
Handshake Error
New Data Flag
SINT
BIT 0
BIT 1
BIT 2
BIT 6
BIT 7
0
0=No Error
1=TX FIFO Overflow Error
0=No Error
1=RX FIFO Overflow Error
0=No Error
1=RX Parity Overflow Error
0=No Error
1=Handshake Error
0=No New Data
1=New Data Present
Length_Lo SINT 20 -128 to +127 (0 - 128)
Length_Hi SINT 0 0 or 1
Data[128] SINT 0 Transmitted ASCII Message