Omron SYSMAC CJ Series, Operation Manual

Page: 190 / 371

All BASIC commands Section 4-2
178
4-2-141 INVERTER_READ
/i
/i
Type System command
Syntax INVERTER_READ(0, station, 0, param_number, param_size, VR)
INVERTER_READ(0, station, 1, alarm_number, VR)
INVERTER_READ(0, station, 2, VR)
INVERTER_READ(0, station, 3, VR)
INVERTER_READ(0, station, 4, from, length, VR)
Description INVERTER_READ reads the parameter, speed reference, torque refer-
ence or alarm from the Inverter connected to the system via the
MECHATROLINK-II bus.
There are five
INVERTER_READ functions:
• 0: Reads an Inverter parameter.
• 1: Reads the Inverter alarm.
• 2: Reads the speed reference.
• 3: Reads the torque reference.
• 4: Reads the Inverter inputs.
To use an Inverter via MECHATROLINK-II you must put the command
and the reference via communication option:
•
Inverter MV/V7: N3=3; N4=9
• Inverter F7/G7/V1000: B1-01=3; B1-02=3.
Make you sure that the Inverter firmware supports the MECHATRO-
LINK-II board.
The command returns -1 if successfully executed and 0 if failed. The
result (if any) is returned in the selected VR.
Arguments • station
The MECHATROLINK-II station number of the Inverter.
• param_number
The number of the parameter to read. See the Inverter manual.
• param_size
The size of the parameter to read, 2 or 4 bytes. Most of the Inverter
parameters are 2 bytes long. See the Inverter manual.
• VR
The address in the VR memory of the CJ1W-MCH72 where the read
information is put. When the function is
4 , the result is returned as a
bitwise value. See the table below.
Bit Value Command Description
0 Hex 1 Run forward
1 Hex 2 Run reverse
2 Hex 4 Inverter multifunction Input 3
3 Hex 8 Inverter multifunction Input 4
4 Hex 10 Inverter multifunction Input 5
5 Hex 20 Inverter multifunction Input 6
6 Hex 40 Inverter multifunction Input 7
8 Hex 100 External fault
9 Hex 200 Fault reset
14 Hex 4000 Fault history data clear