AB Quality Allen-Bradley DH-485 User Manual page 32

Communication interface
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Parameter Number
Parameter
CTS to Transmit Delay
End of Message to
RTS Off
Half Duplex Master
Station Address
Group Number
Table 3.C
Submenu Configuration Parameters
Description
The delay between the CTS signal and the start of transmission by the
KF3 (half duplex only). The delay is from 0 seconds to 0.99 seconds,
in 10 ms (0.01 second) increments. To calculate the delay, multiply the
number in the display by 0.01 seconds.
For example: A setting of 48 means 48 x 0.01 = 0.48 seconds.
This parameter is only required when communicating with the type of
radio modem that requires a delay after exerting the Clear To Send (CTS)
signal. Refer to your modem manual for information on this point.
This parameter only takes effect when the module is in Half Duplex DF1
(local or remote) mode and handshaking is enabled. See Chapter 4,
Communicating with the KF3, for more details of local and remote modes.
The delay between the end of a message and the KF3 setting RTS
inactive (half duplex only). The delay is from 0 seconds to 0.99 seconds,
in 10 ms (0.01 second) increments. To calculate the delay, multiply the
number in the display by 0.01 seconds.
For example: A setting of 50 means 50 x 0.01 = 0.50 seconds.
This parameter is only required when communicating with modems
that require a delay between sending the last character and raising
the Request To Send (RTS) signal. Refer to your modem manual for
information.
This parameter only takes effect when the module is in Half Duplex DF1
(local or remote) mode, and handshaking is enabled.
The station address of the half duplex master device. This value is in
octal and can range from 00 77 inclusive.
This parameter only takes effect when the module is in half duplex remote
mode. See Chapter 4, Communicating with the KF3, for more details of
remote mode.
Used in half duplex remote mode to provide a means of addressing more
than 32 DH 485 stations from the half duplex link. The group number can
be 00 07 inclusive.
Station addresses for DH 485 nodes on a multidrop link combine the
group number and the DH 485 node address. This parameter only takes
effect when the module is in half duplex remote mode. See Chapter 4,
Communicating with the KF3, for more details.
Chapter 3
Configuring the KF3
Factory Default
No delay (00).
No delay (00).
(10 octal).
(00).
3 9

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