GDS C1, Instruction Manual

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C1 Controller Users Manual
Revision 4.6
45
SECTION 7
7.0 ADDING THE 10-0288 RADIO MODEM “WIRELESS” OPTION
C1 master / slave serial ports may be connected to the 10-0288 FHSS (Frequency
Hopping Spread Spectrum) wireless radio modem shown in Figure 7.1. The 10-0288
allows three separate modes of wireless operation. These are “Wireless Receiver”
(section 7.2) accepting data from
GASMAX ECX sensor transmitters, “Wireless Modbus
Slave” (section 7.3) providing data to a modbus master ( master side of network requires
additional 10-0288 radio), and “Wireless Modbus Master” (section 7.4) accepting
wireless data from modbus
slaves ( slaves side of network requires additional 10-0288
radio). “Wireless Receiver” and “Wireless Modbus Master” modes require the 10-0288
be connected to the C1’s RS-485
master port and “Wireless Modbus Slave” mode
connects it to the RS-485 slave port (Figure 3.1). It is important to remember RADIO
SETUP functions described in section 7.1 may only be performed with the 10-0288
connected to the
master port.
Each transceiver on a wireless network must have their
RADIO SETUP
menus configured
to share the same hopping channel (0-32) and System ID (0-255) to communicate. All
R.C. Systems wireless transceivers utilize a Server-Client network where Clients
synchronize their hopping to the Server. The Server transmits a beacon at the beginning
of every hop (50 times per second). Client transceivers listen for this beacon and upon
hearing it will indicate
InRange
and synchronize their hopping with the Server. Each
network should consist of only one Server. There should never be two servers on the
same RF Channel number in the same coverage area as the interference between the two
servers will severely hinder RF communications. The Server must be in a powered
location (as opposed to a battery powered GASMAX ECX utilizing a “sleep” mode) and
Servers typically should be centrally located since all Clients must receive the beacon in
order to communicate.
Figure 7.1
7.1 10-0288 RADIO SETUP MENU
10-0288 radio modems must be connected to the C1’s master port for
RADIO SETUP
.
Pressing the EDIT key with the arrow pointing to the
Radio Setup
menu brings the 10-
0288’s
RADIO CONFIG
menus to the screen (right side of Figure 7.2).