Media Technology Systems ION8.8 - Manual (Page 20)

Page 20 of 31 Aug‐09
network configuration. This will have to be loaded manually by the users
application software.
Note: RS485 settings as follows…
• Local = Local RS485 control and monitoring of all ION parameters via the
CobraNet™ RS485 port (ie serial bridging is off). The Master/Slave toggle then
determines whether the ION is slaved to a separate PC/Processor or acting as the
master to communicate with wall plates (TBA).
• Bridge = Serial bridging, where the CobraNet™ RS485 port is simply a multidrop
bidirectional serial communications channel. The data at the CobraNet™ RS485
port is not used by the local ION, but communicated to a remote device(s) on the
network. This is the standard Cirrus setup. Master/Slave also has no effect in this
situation.
• Remote = Remote control via serial bridging, ie a serial port on a remote
CobraNet™ interface can control and monitor the local ION (TBA).
Figure 4-3:
System settings page.
Notes:
• All RS485 settings need up to 1 minute to establish persistence, as they are
stored in the CobraNet™ flash. If the ION power is cycled before the settings are
stored to flash, then the settings will be lost.
• The RS485/CobraNet™ DIP switch on the rear of the ION should be set to
CobraNet™. If it is set to RS485, then the RS485 address on the DIP switches