Danfoss VLT Refrigeration Drive FC 103 Programming Manual page 91

Parameter Description
8-30 Protocol
Protocol selection for the integrated FC (standard) port (RS485)
on the control card.
Option: Function:
regarding parameters available in the frequency
converter and their inter-dependencies) to MCT
10 Set-up Software.
[2] Modbus Communication according to the Modbus RTU
RTU
protocol as described in the VLT
Drive FC 103 Design Guide, chapter RS485 Instal-
lation and Set-up.
[3] Metasys Communication protocol. The N2 software
N2 protocol is designed to be general in nature in
order to accommodate the unique properties
each device may have. See VLT
102 Metasys Operating Instructions.
[9] FC To be used when a gateway is connected to the
option integrated RS485 port.
Following changes take place:
•
Address for the FC port is set to 1 and
parameter 8-31 Address is now used to
set the address for the gateway on the
network.
•
Baud rate for the FC port is set to a
fixed value (115.200 Baud), and
parameter 8-32 Baud Rate is now used
to set the baud rate for the network
port on the gateway.
NOTICE
Further details can be found in VLT
Metasys Operating Instructions.
8-31 Address
Range: Function:
Size related [ 1 - 255] Enter the address for the frequency
*
converter (standard) port.
Valid range: 1–126.
8-32 Baud Rate
Option: Function:
Baud rates 9600, 19200, 38400, and 76800 are
valid for BACnet only.
The default value depends on the FC protocol.
[0] 2400 Baud
[1] 4800 Baud
[2] 9600 Baud
[3] 19200 Baud
[4] 38400 Baud
[5] 57600 Baud
[6] 76800 Baud
[7] 115200 Baud
MG16H202
Programming Guide
®
Refrigeration
®
HVAC Drive FC
®
HVAC Drive FC 102
Danfoss A/S © 05/2016 All rights reserved.
8-33 Parity / Stop Bits
Option: Function:
Parity and stop bits for the protocol
parameter 8-30 Protocol using the FC
port. For some of the protocols, not all
options are visible. Default depends on
the protocol selected.
[0] Even Parity, 1 Stop
Bit
[1] Odd Parity, 1 Stop
Bit
[2] No Parity, 1 Stop
Bit
[3] No Parity, 2 Stop
Bits
8-35 Minimum Response Delay
Range: Function:
10 ms [ 5 - 10000 Specify the minimum delay time
*
ms] between receiving a request and
transmitting a response. This is used for
overcoming modem turnaround delays.
8-36 Maximum Response Delay
Range: Function:
Size [ 11 - 10001 Specify the maximum allowed delay
related ms] time between transmitting a request
*
and receiving a response. Exceeding
this delay time causes control word
timeout.
8-37 Maximum Inter-Char Delay
Range: Function:
Size related [ 0.00 - Specify the maximum allowed time
*
35.00 ms] interval between receipt of 2 bytes.
This parameter activates timeout if
transmission is interrupted.
3 3
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