RLE Falcon EM - Manual (Page 82)

Communication User Guide: Falcon FMS
68 970 484-6510 www.rletech.com
Serial Com1 Protocol Type: Configures the Serial COM Port 1 (EIA232 or EIA485) Master or Slave
operation. The options are:
 None: Disables Modbus support on Serial Port COM1.
 Modbus Master Generic – 16 Units: Modbus Master Generic–16 Units is the most typical
configuration for the FMS when using Modbus communication. Select this option when there is at
least one Slave unit that is not an RLE/Veris BCM. This option can be configured to poll data
from up to 16 Slave devices.
 Modbus Master BCM – 4 Units: Select this option when there are 1 to 4 BCMs (Branch Circuit
Monitors) and no other Slave devices. This option enables webpages that are unique to the BCM
allowing for easier setup. SNMP (Get, Set and Traps) is supported for the BCMs.
 Modbus Master BCM – 16 Units: Select this option when there are 5 to 16 BCMs and no other
Slave devices. This option enables webpages that are unique to the BCM allowing for easier
setup. SNMP (Get, Set and Traps) is not supported for the BCMs. SNMP is still supported for
the local I/O (Inputs 1 – 104). If SNMP is required for the BCMs, additional FMSs are required
to allow a maximum of 4 BCMs per FMS.
 Modbus Slave: Enables the FMS to operate as a Modbus Slave over the Serial Port COM1.
 None-BACnet/IP: Enables the FMS operate as a BACnet Master and request data from BACnet
devices.
 Telnet: Enables the FMS to communicate via Serial Com Port 1.
Serial Baud Rate: Sets the Serial COM Port 1 to 1200, 2400 or 9600 Baud. All the devices connected to
the FMS Serial COM Port 1 must be set to operate at the same Baud rate.
Serial Interface Type: Enables the FMS Modbus to operate on the EIA-485 or EIA-232 COM Port 1.
Telnet Inactivity Timeout: Allows users to set the Telnet Inactivity Timeout in minutes. This time tells
the FMS when to timeout of the Telnet communication.
Modbus Serial Slave Address: Required when the Serial Protocol is set to “Modbus Slave”. This option
sets the FMS Modbus Slave address for the Serial COM Port 1. Each Slave device on the Modbus network
must have a unique address.
EIA-485 DE TX Delay: Normally left at the 10ms default and is active only when the Serial Interface
Type is “EIA485”. During the start of transmission, the transmit line is driven high for this amount of time
prior to transmitting the message. The time is adjustable from 0ms to 990ms.
EIA-485 DE Off Delay: Normally left at the default of 10ms and is active only when the Serial Interface
Type is “EIA485”. After a message is sent, the transmit line is held high for this amount of time prior to
turning off. The time is adjustable from 10 to 990ms.
Modbus Master Poll Timeout: Sets the amount of time the FMS waits for a response from the Slave
device before moving on to read the next register. It is normally set to the default of one second and is
active only when the Serial Protocol is set to “Modbus Master Generic – 16 Units”, “Modbus Master BCM
– 4 Units” or “Modbus Master BCM – 16 Units”. It is adjustable from 1 to 10 seconds.
Modbus Master Poll Interval: Sets the amount of time when a response is received from a Slave to when
the FMS will ask for the next register and is adjustable from 250 to 2000ms. It is normally left at the 250ms
default and is active only when the Serial Protocol is set to a Modbus Master option. The interval effects
the overall scan rate. If the FMS is configured to read 60 Modbus variables and the poll interval is set to
1000ms (1second), each Modbus variable will be read approximately once per minute.