User manual

WI-GTWY-9-xxx Wireless Gateway User Manual V1.18

Where additional discrete or analog I/O is required, an external expansion I/O module can be

connected to the RS485 port of the WI-GTWY-9 module. See section 4.15 for more details on

this.

Note: Serial Expansion modules can only be used with the WI-GTWY-9-MD1 unit under

certain circumstances.

• WI-GTWY-9-MD1 is configured as “Repeater-only”

• WI-GTWY-9-MD1 is configured as a Modbus Master and WI-I/O-EX serial expansion

modules are used as Modbus Slaves.

The WI-I/O-EX modules have the ability to be

configured to communicate the same way as a WI-

I/O-9 module using the WIB-net Protocol or via as

a Modbus Slave communicating Modbus RTU

protocol. They can be setup with an address range

of 1-99, which is selectable via the rotary switches

on end plate of the module.

1.3 The Wireless Network

The WI-GTWY-9-xxx can communicate with up to 490 other addresses - this could be 490 other

WI-I/O 9-x modules, or in the case of WI-I/O 9-K modules, it could be many thousands of

modules (as many WI-I/O 9-K modules can share the same address). WI-GTWY-9-xxx modules

may take up more than one address under some circumstances.

Any WI-GTWY-9-xxx or WI-I/O 9-x module can act as a radio repeater for other modules - that

is, radio messages can be passed onto other modules. Up to five repeater addresses can be

configured for messages transmitted to a WI-GTWY-9-xxx module.

Each module can have a unit address between 1 – 95, but the WI-GTWY-9-xxx also recognizes

repeater addresses in conjunction with the unit address as the module “identifier”. Hence module

#2 is recognized as different to #2 via #57 - #57 being a repeater.

1.3.1 WI-I/O 9-x to WI-GTWY-9-xxx Network

In the wireless I/O system, the WI-GTWY-9-xxx acts as a normal WI-I/O 9-x module (this

covers WI-I/O 9-x I/O, WI-I/O-EX-1-S-1x I/O, WI-I/O 9-x-K and WI-I/O 9-x-C modules).

WI-I/O 9-x modules transmit messages to the WI-GTWY-9-xxx address and the WI-GTWY-9-

xxx acknowledges these messages like a normal WI-I/O 9-x module. When a WI-GTWY-9-xxx

transmits messages to change remote outputs, it will "re-try" if it does not receive an

acknowledgment, like a normal WI-I/O 9-x module.

Remote WI-I/O 9-x modules can connect to WI-I/O-EX-1-S-1x modules in the normal way. The

WI-GTWY-9-xxx host can access I/O on WI-I/O-EX-1-S-1x modules by using the intermediate

WI-I/O 9-x as a repeater.

WI-GTWY

WI-I/O 9

WI-I/O-9

WI-I/O 9-K