SMC Networks JXCD1, Руководство по эксплуатации

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No.JXC
※
-OMT0007-D
9. Operation methods
9.1 Outline
Two types of operation method are available for this product. The first method is "Operation by Step No.".
When using this method, step data stored in the product can be driven by sending specific commands
over the network. The second method is "Operation by numerical instruction". When using this method
the numerical data (ex. Position, speed, acceleration etc.) is sent directly over the network.
9.2 Operation by Step No.
The function of this mode is to read/write the memory bits corresponding to the input/output port signals
(ex. DRIVE, INP) over DeviceNet from an upper level device.
When an operation is based on the preset step data, select the step data No. by activating the correct
Input bits (IN0, IN1 etc.) then activate the DRIVE signal.
Refer to
14.2 Operation procedure for Operation by Step No. (P. 55 ) .
9.3 Position/speed monitor
When the setting of the input data length of the IO data length is 10 bytes or 20 bytes, the current
position and speed can be read and monitored.
Refer to 4.3 DeviceNet object (2) IO object (Class: 68h) (P. 20 ) for the setting of IO data length.
Refer to 10. Memory map (P. 32 ) for the detailed memory of the current position and speed.
9.4 Operation by numerical instruction
When numerical data relating to the actuator speed, position etc. is sent, the actuator will execute this
data provided it is within the allowable range of values. The available items are different depending on
the output data length of the IO data length (See the table below).
Refer to
4.3 DeviceNet object (2) IO object (Class: 68h) (P. 20 ) for the setting of IO data length.
Items other than numerically specified are referred to the step data which is already registered to the
controller. Preparatory operations such as turning the servo on and performing a return to origin are
required before the actuator may execute step data or numerical Instruction.
Numerical
instructions
Output data length setting
4 bytes 12 bytes 20 bytes 36 bytes
Speed ×
✓ ✓ ✓
Target position ×
✓ ✓ ✓
Acceleration × × ×
✓
Deceleration × × ×
✓
Pushing force × ×
✓ ✓
Trigger LV × ×
✓ ✓
Pushing speed × × ×
✓
Positioning force × × ×
✓
AREA 1 × × ×
✓
AREA 2 × × ×
✓
In position ×
×
✓ ✓
✓
: Numerical instruction is available, X: Numerical instruction is not available.
Refer to
14.3 Operation Procedure for the operation by numerical instruction (P. 60 ) for the
operation procedure.