Honeywell 62-0342-01 ユーザーズマニュアル

62-0342—01

4

5. The IDR should now be energized. Perform the visual 

checks outlined in section 4.

NOTE: The AC adapter provides an isolated 18 VAC/300 

mA power source for the IDR.

(See the hardwired system configuration diagrams in 

Appendix F.)

The SUB-RS232K communications key allows you to connect 

IDRs to a personal computer that has E-Mon Energy software 

installed. The computer communicates with the IDRs through 

the SUB-RS232K.

The SUB-RS232K must be located within 15 feet of the host 

computer.

The SUB-RS232K is supplied with:

• (1) 8-conductor cable fitted with RJ-45 plugs

• (1) DB-9 serial COM port adapter

• (1) AC adapter that converts 120 VAC into the 7 VAC 

used to power the SUB-RS232K.

1. Connect the 8-conductor cable to the left-side jack 

(labeled “RS232”) on the rear panel of the SUB-

RS232K.

2. Connect the appropriate COM port adapter (DB-9) to 

the serial port on the back of the computer. Plug the 8-

conductor cable from the SUB-RS232K into the COM 

port adapter.

3. Connect the 7 VAC AC adapter into the rear panel input 

on the SUB-RS232K. Plug the adapter into a 120 VAC 

outlet. On the front panel of the SUB-RS232K, two 

LEDs will light up (POWER ON and AC ON.)

NOTE: When E-Mon Energy software is accessed on the 

computer, a third LED will turn on. The SUB-RS232K 

READY indicator will light up as soon as the E-Mon 

Energy software is booted up and the correct COM 

port is set up via the settings provided in the soft-

ware’s Locations menu.

On the rear panel of the SUB-RS232K, there are three jacks 

labeled as channels A, B and C. These are RS-485 serial 

communications ports used to connect the IDRs. Each of 

these three channels can be connected to as many as 52 

individual IDRs over a total cable distance of 4000 feet. 

Channels are independent and must not be connected to 

each other. (See Appendix F.)

METHOD 1: MODULAR PLUG METHOD
This method requires using 4 stranded conductors inside a 

cable that is fitted with an RJ-11 type plug for 4-conductor 

modular systems at each end of the cable.

* Do not use any pre-made telephone cables. See Appendix A 

for correct cable configuration.

1. Plug the 4-wire RJ-11 cable/plug assembly into Channel 

A on the SUB-RS232K. Connect the other end of this 

cable to the IDR at either of the two RS-485 ports at the 

top left of the IDR circuit board.

2. The unused RS-485 port is used to connect another 

cable to the next IDR. This is called a “daisy-chain” con-

nection. This can be done repeatedly to connect as 

many as 52 individual IDRs.

NOTE: The total combined cable length must be no more 

than 4,000 feet.

3. Each IDR has two LEDs (yellow and green) located 

directly below the RS-485 jacks. If the system is prop-

erly wired, these two LEDs will normally be OFF. These 

LEDs will flash when the computer and IDR are commu-

nicating.

METHOD 2: TERMINAL BLOCK METHOD
IDRs may also be daisy-chained using a 3-conductor cable. 

Instead of using the two modular jacks for the RS-485 daisy 

chain, you can use J20 at the bottom right corner of the IDR 

circuit board.

Remove this 3-terminal plug to facilitate attaching the wires 

using the screw terminals that are captivated within the plug 

housing.

1. 1. Daisy-chain the IDRs by connecting:

• All HI terminals together

• All LO terminals together

• All GND terminals together

** This requires putting two wires into each of the 3 terminals.

2. Connecting to the SUB-RS232K.

You will need to attach an RJ-11 modular plug to the cable that 

serves the RS-485 system.

On each channel on the back of the SUB-RS232K, the pin out 

for each channel is as follows:

• PIN1 - Not used

• PIN2 - GND

• PIN3  -  HI

• PIN4 - LO

NOTE: It is okay to use the J20 with the modular jacks if 

needed.

This completes the installation of the IDR hardwired system.