Delta AH500 Manual page 720

AH 5 00 Mo d u le Ma n ua l
6. To reduce the reflection of a communication signal on a network, a terminal resistor must
connect CAN+ and CAN-. (Specifications for a terminal resistor: 121 Ω; precision: 1%; power:
Greater than 1/4 W)
15.4 Configuration
15.4.1 Selecting a Mode
Before AH10COPM-5A operates normally, users have to set AH10COPM-5A to Master or Slave by
means of HWCONFIG in ISPSoft. After AH10COPM-5A is set, the setting needs to be downloaded
to AH10COPM-5A.
If the users select Master, they have to use CANopen Builder to configure a network.

Creating a CANopen network
An AH500 series CPU module can be connected to eight AH10COPM-5A modules at most.
Before users create a network, they have to know the requirements for creating the network,
and plan data exchange, including the slave stations which need to be used, the data which
needs to be exchanged, transmission methods, the total quantity of data which needs to be
exchanged, and response time. All the information determines whether the network created is
reasonable, and whether the network created meets the requirements. It even affects the
maintainability at a later stage, and the convenience of upgrading the capacity of the network
created.
1 5 - 8