Step 1: Selecting Protocol and Baud Rate; Restoring the Default Settings
PROTOCOL DIP Switch Configuration
Depending on the communication protocol, used within the network the controller is connected to, there is a possibility to switch the protocol used by the controller so it matches the network protocol.
The protocol, which the controller operates with, and baud rate selection is made with the PROTOCOL DIP switch.
The 1st, 2nd, and 3rd switches are responsible for baud rate, while the 4th and 5th are responsible for the protocol. The 6th switch is responsible for restoring the default settings.
The PROTOCOL DIP switch settings for baud rate and protocol selection are shown in tables below.
1 | 2 | 3 | Baud Rate |
|---|---|---|---|
OFF (0) | OFF (0) | OFF (0) | Defined by user |
OFF (0) | OFF (0) | ON (1) | 76800 |
OFF (0) | ON (1) | OFF (0) | 4800 |
OFF (0) | ON (1) | ON (1) | 9600 |
ON (1) | OFF (0) | OFF (0) | 19200 |
ON (1) | OFF (0) | ON (1) | 38400 |
ON (1) | ON (1) | OFF (0) | 57600 |
ON (1) | ON (1) | ON (1) | 115200 |
4 | 5 | Protocol |
|---|---|---|
OFF (0) | OFF (0) | Modbus RTU |
OFF (0) | ON (1) | Modbus ASCII |
ON (1) | OFF (0) | BACnet Master |
ON (1) | ON (1) | BACnet Slave |
Restoring Default Settings
To restore the default iSMA-B-FCU device settings, follow the steps below:
- Turn off the power supply.
- Set the 6th switch of the PROTOCOL DIP switch to ON.
- Turn on the power supply, wait until the power LED is blinking.
- Set the 6th switch to OFF to restore the default settings. To cancel the reset, turn off the power supply and set the 6th switch to the OFF position.
Out of the box device, as well as after restoring default values procedure, has the default settings as shown in the table below. All parameters can be changed using the iSMA Tool software with the controller connected, only the baud rate and used protocol can be modified with DIP switches.
Name | Default Value |
|---|---|
USER BAUD RATE | 76800 |
STOP BITS | 1 |
DATA BITS | 8 |
PARITY BITS | 0 |
RESPONSE DELAY | 0 |
I1 – I4 DIGITAL INPUT COUNTERS | 0 |
For more information on changing the protocol parameters, check the FCU Application manual and FCU Hardware manual.