CHAPTER 12 POSITIONING DATA
Operation Modes 12-3
12
(2) Immediate value data operation
Designate position data, speed data and so on at the host controller directly to execute
positioning operation.
Interface: RS-485 communications (Modbus-RTU)
<Message>
Messages are sent from the master to the slave in the uni-cast method where the immediate
value data, monitor data and so on are sent with the station number of the slave and then a
response message is sent.
To start two or more axes simultaneously, you can use the broadcasting method where
transmission is made to all slaves through designation of station number 0.
In the broadcasting method, no response message is sent. For this reason, you can send the
start positioning signal in a broadcasting message to execute motions under pseudo
interpolation control.
<Message>
The following parameters must be entered for operation based on immediate data.
PA1_01: control mode selection = 7 (positioning operation)
PA2_40: internal positioning data selection = 0 (disable)
PA2_41: sequential start selection = 3 (immediate value data operation)
PA2_97: communication protocol = 1 (Modbus-RTU)
Amplifier (slave)
Immediate value data
- Position data
- Speed data
- Timer data
- M code
- Status
- Acceleration time
- Deceleration time
Immediate value data, star
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