ResetCanTimer

ResetCANTimer resets the CAN timestamp timer that is returned with GETCAN.

Arguments

Trig%

Specifies whether the timestamp is to be reset. The values are different depending on whether the function is called on a Unidrive SP or a UD77-CAN option.

For UD77-CAN:

Value	Meaning
0	Do not reset.
1	Reset CAN timer.

For SM-Applications, Trig% has the format SA, where A has the same meanings as UD77-CAN and S specifies the slot (1, 2 or 3) containing the SM-CAN option to be reset. If S is 0, the SM-CAN option in the lowest numbered slot will have its CAN timer reset.

Return Values

Q%

Value	Meaning
0	Operation failed.
1	Operation succeeded.

Target/ Language Restrictions

Only available on SM-Applications, SM-Applications Lite and UD77-CAN.

See Also

• CANConfigEvent

• CANGetNodeAddr

• CANReady

• CANSetup

• CANStatus

• CANStatusAll

• EnableCANTrips

• GETCAN

• PUTCAN

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Rs/sr : Event Memory Latches

Event memory latches which latch an active state when an event occurs (e.g. a variable reaches a maximum).

Theses latches are simple R-S and S-R bistables.

Arguments

Reset%

Reset the latch if non-zero.

Set%

Set the output active (1) if non-zero.

Return Values

Q%

The latched value.

Example

Target/ Language Restrictions

None.

See Also

• TRL

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RtuReadRegs

Modbus-RTU master command to read holding registers (Function Code 03).

Arguments

SlaveAddress% - 0 to 247

Address of the Slave to read the registers from.

Timeout%

Time, in milliseconds, to wait for a reply.

StartRegister%

The first register to be read.

NumRegs%

Number of registers, from the first register, to read.

Return Values The status of the command.

Example

Target/ Language Restrictions

This operation is only available on SM-Applications and SM-Applications Lite.

See Also

• RTUReadParas

• RTUReadInputRegs

• RTUPresetRegs

• RTUPresetParas

• RTUMasterReply

• RTUMasterStatus

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RtuReadParas

Modbus-RTU master command to read holding registers (Function Code 03) using parameter format.

Arguments

SlaveAddress% - 0 to 247

Address of the Slave to read the registers from.

Timeout%

Time, in milliseconds, to wait for a reply.

StartMnu%

The menu number of the first register to be read.

StartPar%

The parameter number of the first register to be read.

NumRegs%

Number of parameters, from the first parameter, to read.

AccessMode%

Value	Meaning
0	Read 16-bit parameter(s)
1	Read 32-bit parameter(s)

Return Values

Status%

The status of the command.

Value	Meaning
0	Request accepted and is currently in progress.
1	Busy. A request is currently in progress.
2	Invalid destination address.
3	Too much data to transmit. Reduce NumRegs%.

Example

Target/ Language Restrictions

This operation is only available on SM-Applications and SM-Applications Lite.

See Also

• RTUReadRegs

• RTUReadInputRegs

• RTUPresetRegs

• RTUPresetParas

• RTUMasterReply

• RTUMasterStatus

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