User's Manual

Pit Installation
20 R900 Wall and Pit MIU Installation and Maintenance Guide
Dual Register Applications
The R900 can be connected to two networked ProRead (ARB VI) or E-Coder (ARB
VII) encoder registers. The following section describes the configuration for a pit
location. If you are installing one single R900 Pit MIU within a pit, complete the
instructions contained in
“Single Pit MIU Installation” on page 13.
To connect two registers, complete the following steps.
1 Ensure the registers are programmed in network mode.
2 Connect the registers by daisy-chaining the registers and MIU
together using the 3-wire connector cable. See
Figure 29.
Figure 29 Compound Registers Wired to One MIU
-
• The field programmer must have software SESW 56.05 or higher.
• ProRead (ARB VI) or E-Coder (ARB VII) registers cannot be pro-
grammed while connected together in a network. Each register
must be programmed separately prior to making the network con
-
nections.
• For a compound register, the turbine side is considered the (Hi) side, and
the disc side is considered the (Low) side. When connecting an R900 to
two separate meters, select one meter to be the (Hi) side and the other to
be the (Low) side.
• Every R900 MIU has two ID numbers: one is listed as (Hi) side, and the
other is listed as (Low) side on the bar-coded pull tabs. Be sure the
appropriate tag is assigned to the correct register. See Table 5.
Type
Programmed
Network ID
Network Register
Assigned
MIU
Assigned ID
Master 99 (Hi) side Even 10-digit ID#
Slave 01 (Low) side Odd 10-digit ID#