Device-defined data types (Modbus Slave)

Device-defined data type names vary for each serial protocol depending on the
Channel
 selection in
Device definition
. These tables describe the device-defined data types created for the Master Slave protocol. The tables include information for input (as indicated by an "I"), and information for output (as indicated by an "O").
Device-defined data type: AB:5000_ModbusSlave:I:1
Name
Type
Definition
Valid Values
RunMode
BOOL
Channel operating state.
0 = Idle
1 = Run Mode
ConnectionFaulted
BOOL
Indicates if the connection is running. The device sets value to 0 when connected and then changes value to 1 when not connected.
0 = Connection running
1 = Connection is not running
DiagnosticActive
BOOL
Indicates if any diagnostics are active or if the prognostics threshold is reached.
0 = No diagnostics active
1 = One or more diagnostics are active or the prognostics threshold is reached
DiagnosticSequenceCount
SINT
Diagnostic counter. The value increments each time a distinct diagnostic condition is detected, and again when the condition transitions from detected to not detected.
Set to zero by product reset or power cycle. Wraps from 255 (-1) to 1 skipping 0.
-128...+127
The value of 0 is skipped except during device power-up.
Slave
AB:5000_ModbusSlave_Channel:I:1
Channel array configurations
—
Device-defined data type: AB:5000_ModbusSlave_Channel:I:1
Name
Type
Definition
Valid Values
Fault
BOOL
Indicates that channel data is inaccurate and is not trusted for use in the application.
0 = Good
1 = Bad, causing fault
Tip:
 If set to 1, troubleshoot the device to correct the cause of the inaccuracy.
Once the condition is removed, this is automatically reset to 0.
Uncertain
BOOL
Indicates that the channel data may be inaccurate, but the degree of inaccuracy is unknown.
0 = Good data
1 = Uncertain data
Tip:
 If set to 1, troubleshoot the device to correct the cause of the inaccuracy.
Once the condition is removed, this is automatically reset to 0.
CRC_LRCError
BOOL
Indicates if a CRC (LRC) Error occurred.
0 = Non-occurrence
1 = Occurrence
ParityError
BOOL
Indicates if a parity error occurred.
0 = Non-occurrence
1 = Occurrence
IllegalDataAddress
BOOL
Indicates if the request is out of Modbus Register Address.
0 = Non-occurrence
1 = Occurrence
FramingError
BOOL
Indicates if a framing error occurred.
0 = Non-occurrence
1 = Occurrence
BufferOverrun
BOOL
Indicates if a buffer overrun occurred.
0 = Non-occurrence
1 = Occurrence
SequenceNumberAck
INT
Acknowledges the sequence number.
-32768...+32767
MasterUpdateCount
INT
Any Modbus change updates the count.
-32768...+32767
HoldingRegister
INT[100]
The Modbus Holding Register value.
-32768...+32767
Coil
SINT[16]
The Modbus Coil value.
-128...+127
Device-defined data type: AB:5000_ModbusSlave:O:1
Name
Type
Definition
Valid Values
Slave
AB:5000_ModbusSlave_Channel:O:1
Channel array configurations
—
Device-defined Data Type: AB:5000_ModbusSlave_Channel:O:1
Name
Type
Definition
Valid Values
Run
BOOL
Channel operating state.
0 = Idle
1 = Run
Tip:
 The Run bit must be set to Run in order start the update of the output tags.
SequenceNumber
INT
Sequence number for updating slave data from controller.
-32768...+32767
HoldingRegister
INT[100]
The Modbus Holding Register value.
-32768...+32767
Coil
SINT[16]
The Modbus Coil value.
-128...+127
InputRegister
INT[100]
The Modbus Input Register value.
-32768...+32767
DiscreteInput
SINT[16]
The Modbus Discrete Input value.
-128...+127
Provide Feedback
Have questions or feedback about this documentation? Please submit your feedback here.
Normal