Fujitsu AB* A12GATH, Design & Technical Manual

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PROCEDURE IN BRIEF REGISTER DATA TO MODBUS
®
CONVERTOR FOR VRF (UTY-VMGX)
Address initial settings are 3 methods as follows.
(1) Default addresses of indoor unit and outdoor unit are used. (Initial setting is not necessary)
Default address value ([RefNo.—NodeNo.])
Indoor unit: [00―00] [00―01] ••• [00―63]
[01―00] [01―01] ••• [01―63]
Outdoor unitt: [00―00] [00―01] ••• [00―03]
[01―00] [01―01] ••• [01―03]
(2) Scan
Scan procedure is as follows.
STEP 1: Turn on the switch of scan setting.
STEP 2: “Scan display” by LED (address is registering inside the convertor.)
STEP 3: “Number of connected indoor unit display” by LED (Scan is complete)
STEP 4: Turn off the switch of scan setting
STEP 5: “Address update display” by LED
STEP 6: Turn on the main power again.
STEP 7: “Address rewriting display” by LED (Addresses are synchronized among boards)
* When scan error is generated, performing the scan again is necessary.
(3) Setting from PC
NOTE: For detailed information, check the Application Manual which is included inside
packaged DVD.
STEP 1: Install Tool for Convertor (software) for UTY-VMGX in PC.
Tool for Convertor is the accessory item of UTY-VMGX.
STEP 2 Connect the PC and Modbus
®
convertor for VRF (UTY-VMGX) .
Connection will be done by the connector cable provided as an accessory item of
UTY-VMGX.
STEP 3: Set Modbus
®
Convertor (UTY-VMGX) to USB Mode.
STEP 4: Initial setting of Indoor Unit & Outdoor Unit Addresses by using the Tool for
Convertor.
STEP 5: Register the initial setting data to UTY-VMGX. Click ‘Register’ dialog.
In this stage, Modbus
®
Convertor (UTY-VMGX) is ready for binding and
commissioning.
Important : Modbus
®
Convertor will not operate if,
● VRF network system address (Outdoor and Indoor units address) allocation
information are not registered to Modbus
®
Convertor.
- (05 - 153) -
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