gefran GF VEDO HL

16
80546B_MHW_GF_VEDO-HL_02-2013_ENG
3.5.7 CAN port
The optional CAN port lets GF_VEDO HL dialog via the serial standard (ISO 11898-1 of 2003) for the CAN
(Controller Area Network) field bus, also known as CAN-bus.
This protocol is specifically designed for excellent operation even in environments with strong electromagnetic
noise, and can use a balanced potential line such as an RS-485 as means of transmission.
In particular, GF_VEDO HL implements the CANOpen Layer 2 standard. The CAN port is optically isolated and
uses a 6-pin (male) D-sub connector.
Signal assignment is shown in Table 12.
An approved CAN cable is recommended for the connection. You have to add a termination (at the ends of the
CAN line) by short circuiting pins 1-2 of the connector.
642
5
31
3.5.8 External Battery Port
The external battery port lets you connect the GF_VEDO HL terminals to a battery to save BIOS data and data
stored in static RAM.
A 2-pin Modu II (AMP) connector is used.
The battery (NOT rechargeable) must be between 3V and 3.6 V.
Use the external battery only when the internal battery is not connected to the terminal.
Figure 16
External battery connector for GF_VEDO HL terminals
Pin Description
1 + Battery
2 - Battery
Table 13
Signal assignment on external battery connector for GF_VEDO HL terminals
Figure 15
CAN connector of GF_VEDO HL terminals
Table 12
Signal assignment of CAN port of
GF_VEDO HL terminals
Pin Description
1 Termination (*)
2 Termination (*)
3 CANH
4 CANL
5 SHIELD
6 CANGND1