Modbus Addresses - Siemens NK8237 MP4.40 Installation, Function & Configuration, Commissioning

Configuration
7.7.3

Modbus addresses

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Building Technologies
Fire Safety & Security Products
3. In the Watchdog Timeout field, enter the maximum polling delay in seconds.
Configuring the relay output (communication fault)
1. Select the NK8237 node and expand the subtree.
2. In the toolbar on the left, select the Onboard I/O icon
A new Onboard I/O node appears.
3. Select the new I/O Onboard node.
4. In the toolbar on the left, select the Relay Output icon
A new Relay Output node appears under the Onboard I/O node.
The relay is configured for communication diagnostics.
By default, the node is named "Relay Output".
 See the onboard output connection on page 14 (X101 connector).
Configuring the inputs (for power supervision or other purposes)
1. Select the NK8237 node and expand the subtree.
2. Select the new I/O Onboard node.
3. In the toolbar on the left, select the Generic Input icon
A new node appears under the Onboard I/O node.
By default, the new node is named "Generic Input #1".
4. If necessary, click one or two more times the Generic Input icon
New Generic Input nodes appear under the Onboard I/O node.
By default, the new nodes are named "Generic Input #2" and "Generic Input
#3".
 See the onboard input connections on page 15 (X102 connector).
Do not select the Power Supply Supervision
even if the signals are used for this supervision purpose. Instead, create the 3
generic inputs and then customise the description texts appropriately.
The Power Supply Supervision configuration option, which globally defines the
input signals, is currently not supported by the NK8237.
Configuring the Time Synchronization mode
1. Select the Modbus Master node.
2. Select the Host tab.
3. In the Time Synchronization fields, defined the required mode:
 If the time synchronization is received from the Modbus master station,
check the Host enable checkbox.
 If the time synchronization is acquired from the FS20, uncheck the Host en-
able checkbox and enter the time of the daily acquisition (HH:MM).
The address parameters include:
Modbus devices slave address
These parameters define the Modbus slave addresses of the fire units mapped.
By default, the device address corresponds with the node number in Composer.
option for the onboard inputs
048_DMS_NK8237_ICC_MP4.40_A6V10316241_a_en.doc
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06.2011