Western Reserve Controls 1782-JDO Uživatelský manuál stáhnout pdf (Strana 15)

Western Reserve Controls WRC-CANR-DF-DN and –SM User’s Manual

PUB 14.2 Revision 4.03

When CANR-DF is used in a drop line (the Network A side is toward the main trunk), the Network

A connection must

not be terminated

. The user must remove the built-in terminator by removing the

jumper plug at W1.

Some specifications for the terminating resistor are:

Table 4-8 Terminating Resistors

DeviceNet SDS

121 ohm 120 ohm

1% metal film 2%

1/4 watt 1/4 watt

Important: Per the DeviceNet and SDS specs -- do not terminate devices on drop lines.

4.5.3. CAN-Bus Connection Wiring

The CANR-DF uses the round, mini-style connector on the copper side A and standard ST

connectors on the fiber side B.

Figure 4-2

DeviceNet

Network Side A cable connector – Male (pins)

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 25 26

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Western Reserve Controls 1782-JDO Uživatelský manuál Strana 15