IAI America ERC - Manual (Page 63)

43
3.8 Controlling Multiple Axes via Serial Communication
The following operations become possible if multiple axes are controlled:
[1]
Executing movement operations or parameter edit to all axes by connecting teaching pendant or PC via
SIO converter.
[2] Performing operations via serial communication with the PLC’s communication module as a host by way of
a SIO converter.
3.8.1 Basic Specifications
Specification item Description
Communication format RS485
Transmission speed
115200 bps
(9600 bps, 19200 bps or 38400 bps may also be selected)
Maximum number of units that
can be connected
16 axes
Maximum cable length 100 m or less
Terminal resistor
120  (built into the SIO converter/insulated PIO terminal block);
required if the cable length is 10 m or more.
3.8.2 Address Assignment
In a linked configuration where multiple axes are connected via serial communication, the host (teaching
pendant, PC or communication module) assigns an address to each axis in order to recognize the corresponding
actuator.
Assign addresses in the setting screen of the teaching pendant or PC.
 Overview of operation on the PC
[1] Open the main window  [2] Click Setup (S)  [3] Bring the cursor to Controller Setup (C)  [4] Bring
the cursor to Assign Address (N) and click the mouse  [5] Enter an appropriate number in the
address table.
 Overview of operation on the teaching pendant RCA-T
[1] Open the User Adjustment screen  [2] Use the  key to bring the cursor to Address No.  [3] Enter
an appropriate address and press the ENTER key  [4] Enter “2” under Adjustment No. and press the
ENTER key  [5] Restart the actuator.
 Overview of operation on the simple teaching pendant RCA-E
[1] Open the User Adjustment screen  [2] Press the ENTER key to open the screen showing Address No.
 [3] Enter an appropriate address and press the ENTER key  [4] Enter “2” under Adjustment No.
and press the ENTER key
 [5] Restart the actuator.
 Overview of operation on the jog teacher RCB-J
[1] Press the ON/OFF and RUN keys together to turn on the power  [2] Press the – key to open the
screen showing Axis No.  [3] Use the + and – keys to set an appropriate address  [4] Press the SET
key  [5] Restart the actuator.
Refer to the operation manual for the teaching pendant or PC software for the specific operating procedure.
In the actual process of assigning addresses, the teaching pendant or PC and the target actuator must have a
one-on-one link. Therefore, disconnect the communication cables (SGA/SGB) from other axes to tentatively
provide a condition where not more than one axis is connected.