References
of Load Communication Interfaces
Copyright © ITECH Electronic Co., Ltd.
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5.3 GPIB Interface
Firstly, connect load GPIB interface and computer GPIB card through IEEE488
bus and ensure sufficient contact. Tighten them with screws. Set address. Load
address range: 1-30. Press
[Shift]
+ 8(System) to enter system menu functions.
Press Left/Right key to find Communication. Select GPIB and set address. Input
address and press
[Enter]
for confirmation. The load works by setting GPIB
address on front board. GPIB address is saved in NVM.
5.4 LAN Interface
Press
[Shift]
+ 8(System) button to enter the system set. Please select “LAN” in
the Communication from System and then configure Gateway, IP, Mask and
Socket Port in the LAN option.
Connect the LAN interface of load to the computer with a reticle (crossed). The
gateway address should be consistent with that of the PC, and the IP address
should be at the same network segment with the PC’s IP address.
5.5 CAN Interface
There is one CAN interface at the rear panel. The user can use this terminal for
PC connection; to activate connection, be sure that the values set in the System
menu are same as the corresponding values set in PC.
Note
CAN setting in the program shall be consistent with the one set in the System menu of front
panel. To query and change, press the composite key
[Shift]
+ 8(System) to enter the setting
screen in System menu for query and change. For details, refer to 3.6 System Menu.
Baud Rate
In the front panel
[Shift]
+ 8(System), under the System menu, the user can
select one Baud rate stored in NVM:
10K|20K|40K|50k|80k|100k|125k|200k|250k|400K|500K|1000K
CAN Pin Definition
CAN interface pin is as follows.
CAN interface pin
Pin
Description
H
CAN_H
L
CAN_L
CAN Troubleshooting:
If CAN connection fails, check that:
1. The PC and load have same Baud rate.
2. Appropriate interface pin or adapter is used, as described in CAN
connector.
3. The interface cable is correctly connected (CAN_H to CAN_H, CAN_L to
CAN_L).
Check whether 120 Ω terminal resistance is connected.
Setting Communication
Before running communication, please match the load parameters with the PC
