Mc-3010A/3020D Jumper Setting; Setting Modbus Addresses - Furuno VR-7000 Installation Manual

2. WIRING
2.8.5

MC-3010A/3020D jumper setting

This section shows how to set the MC-ANLG Board (24P0115, for MC-3010A) and
MC-DIN Board (24P0116, for MC-3020D).
J3
J4
J5
MC-ANLG Board (24P0115)

Setting MODBUS addresses

Use the rotary switch U18 to set the MODBUS address with a digit of number from "0".
When multiple sensor adapters are connected to the MC-3000S, the same number
cannot be used among them. (The same number can be shared between the MC-
3000S and a sensor adapter.)
Setting termination resistors
Use the jumper block J25 to set the termination resistor on/off for the MODBUS com-
munication on the connector J1. For the first and last sensor adapter in a series, their
termination resistors should be set to ON. If not, communication between sensor
adapters is not possible.
Jumper block J25
1-2
2-3
1-2
2-3
2-38
J25
OPEN Termination resistor: OFF (default setting)
SHORT
SHORT Termination resistor: ON
OPEN
U18
MC-DIN Board (24P0116)
Connector J1
J25
U18