ProSoft Technology PS-QS-1x10-0781 - Manual (Page 77)

FieldServer Configuration Manual Page 77 of 90
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Appendix B.4.4. Connections/ Adapters
Section Title
Connections
Column Title
Function Legal Values
Port
Specifies the port through which the device is connected to the
FieldServer.
P1-P8, R1-R2
16
Baud* Specifies Baud Rate
300, 9600,
38400;
Parity* Specifies serial data byte parity
Even, Odd,
None
Data_Bits* Sets number of data bits for serial port. 7, 8;
Stop_Bits Sets the stop bits for communications 1, 2
Line_Drive_Off
When using RS-485, specifies delay from end of message to when the RTS
line is deasserted Time in
seconds
Line_Drive_On
When using RS-485, specifies delay after RTS is asserted until message is
transmitted Time in
seconds
Ic_Timeout Specifies inter-character timeout period within a message once it starts
Timeout in
seconds
Turnaround_Delay
(Turnaround_Time) This is the time the Server takes to initiate a response after having
received a poll. Delay in
seconds
Client/Server_Mode
Where two FieldServers are connected in Hot Standby mode each with a
PEX and a SCADA Tier, if the SCADA Tier of one FieldServer polls the
SCADA Tier of the other FieldServer, that tier will start acting as a Server.
Setting this parameter to Client_Only will prevent this happening.
Client_Only
Node_Retire_Delay*
This parameter allows the user to configure a time after which a Node is
no longer polled until the FieldServer is restarted. See Section 6.1.4
Time (s), 0
Write_Queue_Mode*
Mode for dealing with potential accumulation of successive writes to the
same point can be configured. Overwrite,
Blocking.
Write_Queue_Size*
The length of the queue can be configured if blocking mode is set.
Blocking will occur when there is no more space on the Write_Queue.
If size=0 every successive write is blocked. A message will be displayed
when blocking occurs, except if the Queue_Size=0.
Non-negative
integer, 0
Bias_Mode*
Only relevant to Protonode and X25. If this parameter is set to Yes or
Enabled, it loads the RS-485 line by placing additional resistance on it This
has the benefit of making the signals cleaner in a noisy environment but
may reduce the maximum number of devices possible in a multidrop
configuration.
Enabled, Yes,
Disabled, No
Section Title
Adapter
Column Title
Function Legal Values
Adapter Adaptor name Arcnet, DH+, Modbus+, Profibus, etc...
MAC_Address (Net_number) Specify Network MAC address
16 Not all ports shown are necessarily supported by the hardware. Consult the appropriate Instruction manual for details of the ports available
on specific hardware.