Driver Module Instance Object Value

The object value of a driver module instance can be used to provide information about how that particular driver is running. This is done by accessing the public variables described in the following table.

Counts The number of successful communications since starting. Counts is a Long variable.
ErrorCounts The number of errors encountered since starting. ErrorCounts is a Long variable.
SilentErrorCounts Used only on reads and only by drivers that can have managed sessions or poll for exception, unsolicited data, etc. Indicates that the read could not happen, but this is not necessarily an error. Used to suppress VTSDriver from changing the driver's Value parameter.
Error

The error code number of the current communication attempt. Error is reset to "0" when the error clears. Error codes follow:
Error Description

0

No error

1

Not executable in RUN mode

2

Not executable in MONITOR mode

3

Not executable with PROM mounted

4

Address over (data overflow)

B

Not executable in PROGRAM mode

C

Not executable with PROM mounted

D

Not executable in LOCAL mode

10

Parity error

11

Framing error

12

Overrun

13

FCS error (checksum)

14

Format error (parameter length error)

15

Entry number data error (parameter error, data code error, data length error)

16

Instruction not found

18

Frame length error

19

Not executable (due to unexecutable error clear, non-registration of I/O table, etc.)

20

I/O table generation impossible (unrecognized Remote I/O unit, word over, duplication of Optical Transmitting I/O unit)

80

Incomplete response to WRITE

81

Bad serial port parameters

82

Serial port already used

83

FCS error (checksum)

84

No response from PLC (timed-out)

85

Wrong PLC station address responded

86

TYPE parameter out-of-range

87

Garbled/incomplete message

A0

Aborted due to parity error in transmit data

A1

Aborted due to framing error in transmit data

A2

Aborted due to overrun in transmit data

A4

Aborted due to format error in transmit data

A5

Aborted due to entry number data error in transmit data

A8

Aborted due to frame length error in transmit data

B0

 
Not executable because the program area is not 16K
LastError The error code number of the last error encountered by any communications attempt. LastError is not reset to zero when the error clears.
TimeStamp The time (in seconds) of the last successful communication since midnight. TimeStamp is a floating-point variable.
DateStamp The date of the last successful communication since January 1, 1970. DateStamp is a long variable.
ErrorTime The time of the last error encountered in any communication attempt in seconds since midnight. ErrorTime is a floating-point variable.
ErrorDate The date of the last error encountered in any communication attempt in days since January 1, 1970. ErrorDate is a Long variable.
ErrorOwner An object variable that holds the object value of the read or write statement that encountered the most recent error.
SCounts[255] An array of Counts values, one for each Omron PLC.
SDateStamp[255] An array of DateStamp values, one for each Omron PLC.
SError[255] An array of Error values, one for each Omron PLC.
SErrorCount[255] An array of ErrorCounts values, one for each Omron PLC.
SErrorDate[255] An array of ErrorDate values, one for each Omron PLC.
SErrorTime[255] An array of ErrorTime values, one for each Omron PLC.
STimeStamp[255] An array of TimeStamp values, one for each Omron PLC.
Version A text variable that is set to the version number of the driver when the driver is started.

For example, if the object value of the driver module was assigned to an object variable called, "Driver" then to display any errors generated by any reads or writes using this driver, use an expression similar to the following example:

Output(0, 0, 1, 0, 0, Driver\Error, 15, 0, 0, 0, 0) { Show the current error code }