Bell & Gossett S14334B Technologic 5500 Series Variable Primary Pump and Valve Controller - Manual (Page 22)

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4.3.10 Communication Setup Menu
From the System Setup Menu, shown in section 4.3,
press 10 and ENTER to get to the Communication
Setup Menu shown below.
Comm. Setting
1 = BACnet 2 = JC N2
3 = MODBUS 4 = BACnet/IP
0 = Exit Select: #
Press the numeric key and ENTER.
4.3.10.1 BACnet MS/TP
From the Communication Setup Menu, shown in sec -
tion 4.3.10, press PROCESS VARIABLE/1 and ENTER
to get to the BACnet screen shown below.
BACnet MS/TP
Baud, 8, 1, 1, N Slave
MAC address: #
SP Ovrd: ? Y/N Exit ? Y/N
The first line confirms setup for the BACnet protocol.
The second line defines the 9600 bps baud rate, 8 bit
data packets, 1 stop bit, 1 start bit and no parity. To
return to the Communication Setup Menu, shown in
section 4.3.10, press YES/7 and ENTER. To edit the
fields, press NO/0 and ENTER. Table 22 gives a
description of the BACnet Variables.
Note: The Technologic 5500 Series Variable Primary
Pump and Valve Controller is a MS/TP slave only. It
will not respond to a Who-Is command or initiate any
communications.
4.3.10.2 Metasys N2
From the Communication Setup Menu, shown in sec -
tion 4.3.10, press SET POINT/2 and ENTER to get to
the Metasys N2 screen shown below.
Matesys N2
9600, 8, 1, 1, N. VND
Node: # SP Ovrd: ? Y/N
Exit ? Y/N
The first line confirms setup for the Johnson Controls
N2 protocol. The second line defines the 9600 bps
baud rate, 8 bit data packets, 1 stop bit, 1 start bit
and no parity. To return to the Communications
Setup Menu, shown in section 4.3.10, press YES/7
and ENTER. To edit the fields, press NO/0 and
ENTER. Table 23 gives a description of the Metasys
N2 Variables.
4.3.10.3 Modbus RTU
From the Communication Setup Menu, shown in sec -
tion 4.3.10, press SETUP/3 and ENTER to get to the
Modbus screen shown below.
Modbus
9600, 8, 1, 1, N. RTU
Node: # SP Ovrd: ? Y/N
Exit ? Y/N
The first line confirms setup for Modbus protocol.
The second line defines the 9600 bps baud rate, 1
stop bit, 1 start bit, and no parity. To return to the
Communications Setup Menu, shown in section
4.3.10, press YES/7 and ENTER. To edit the fields,
press NO/0 and ENTER. Table 24 gives a description
of the Modbus Variables.
Variable Description Default Value Range Field Value
Baud The baud rate is user adjustable 9600 9600,
19200,
38400
MAC Address Obtain the node number from the manufacturer that 0 0-255
supplied the device that will communicate with the
Technologic Controller. A change requires a power cycle.
Inst # If multiple devices are present on the network, a 100 0-9999
unique instance number is required.
SP Ovrd Select “Y” for SP Ovrd to allow the external device to N Y/N
override the local setpoint data.
Table 22: BACnet MS/TP Variables
Variable Description Default Value Range Field Value
Node Obtain the node number from the manufacturer that 0 0-255
supplied the device that will communicate with the
Technologic Controller
SP Ovrd Select “Y” for SP Ovrd to allow the external device to N Y/N
override the local setpoint data.
Table 23: Metasys N2 Variables
Variable Description Default Value Range Field Value
Node Obtain the node number from the manufacturer that 0 0-255
supplied the device that will communicate with the
Technologic Controller
SP Ovrd Select “Y” for SP Ovrd to allow the external device to N Y/N
override the local setpoint data.
Table 24: Modbus RTU Variables