8. If using a Network ID (NID), adjust both rotary switches back to the NID value.
To avoid losing the network connection between the Gateway and Nodes, reset the rotary switches back to their
appropriate values before leaving the *DVCFG sub-menus. If the Gateway and Nodes lose their connection, the
network may take up to 20 seconds to re-synchronize.
9. Double-click Gateway push button 2 to return to the Device Configuration (*DVCFG) menu.
10. Click Gateway push button 1 until reaching the *RUN menu option.
5.7.2 Setting the Baud Rate
The baud rate establishes the communication rate between the Gateway and the host system to which it is wired.
Continuing from the previous menu position, follow these steps to set the baud rate.
1. Single-click Gateway push button 1 to move to the next menu option, the BAUD rate.
2. Single-click Gateway push button 2 to display the current setting. Single-click Gateway push button 1 to cycle through
the available options. Stop on the desired setting.
The options are 9600, 19200, 38400. The factory default is 19200.
3. Single-click Gateway push button 2 to save the new setting.
4. If using a network ID (NID), adjust both rotary switches back to the NID value.
To avoid losing the network connection between the Gateway and Nodes, reset the rotary switches back to their
appropriate values before leaving the *DVCFG sub-menus. If the Gateway and Nodes lose their connection, the
network may take up to 20 seconds to re-synchronize.
5. Double-click Gateway push button 2 to return to the Device Configuration (*DVCFG) menu.
6. Click Gateway push button 1 until reaching the *RUN menu option.
5.7.3 Setting Parity
Parity bits are used to detect errors in data.
Continuing from the previous menu position, follow these steps to set the parity.
1. Single-click Gateway push button 1 to move to the next field, the PARITY field.
2. Single-click Gateway push button 2 to display the current setting. Single-click Gateway push button 1 to cycle through
the available options. Stop on the desired setting.
The options are NONE, EVEN, ODD. The factory default is NONE.
3. Single-click Gateway push button 2 to save the new setting.
4. If using a network ID (NID), adjust both rotary switches back to the NID value.
To avoid losing the network connection between the Gateway and Nodes, reset the rotary switches back to their
appropriate values before leaving the *DVCFG sub-menus. If the Gateway and Nodes lose their connection, the
network may take up to 20 seconds to re-synchronize.
5. Double-click Gateway push button 2 to return to the Device Configuration (*DVCFG) menu.
6. Click Gateway push button 1 until reaching the *RUN menu option.
5.8 Default Output Conditions
The timeout structure of the SureCross wireless network sets relevant outputs to user-defined conditions when radio or
host communications fail.
If the timeout features are enabled, the outputs are set to default states or the last known state before the error. The
timeout error conditions are cleared by either a reset command sent from the host, using the front panel display, or using
the auto-recover feature. Communications timeouts occur in three areas within the SureCross wireless system:
•
Host Link Failure to the Gateway (Modbus Timeout)
•
Gateway Link Failure with any Node
•
Node Link Failure with the Gateway
5.8.1 Host Link Failure
A host link failure occurs when the defined timeout period, typically set to four seconds, has elapsed with no
communications between the host system (or Modbus master device) and the Gateway.
The Gateway places an error code in its I/O 8 register and sends a message to all relevant Nodes within the system to set
outputs to the user-defined default states. Each Node has an enable flag for a host link failure condition. If a Node’s ‘host
link failure’ flag is not set, the outputs on the Node are not affected.
In the example shown, a host link failure between the host system and Gateway result in the outputs of Node 1 and Node
2 sent to the defined conditions if both Nodes have the host link failure checkbox selected.
Sure Cross
®
Performance DX80 Wireless I/O Networks
www.bannerengineering.com - Tel: 763.544.3164
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