Panasonic MINAS A5 Two-Way Radio User Manual


  Open as PDF
of 478
 
7-33
1
Before Using the Products
2
Preparation
3
Connection
4
Setup
5
Adjustment
6
When in Trouble
7
Supplement
'DWD%ORFN&RPSRVLWLRQ
Below shows the composition of data block which is transmitted in physical phase.
N : Command byte counts (0 to 240)
Shows the number of parameters which are required by command.
axis : Sets up the value of Pr5.31.(0 to 127)
command : Control command (0 to 15)
mode : Command execution mode (0 to 15)
Contents vary depending on the mode.
check sum : 2's complement of the total number of bytes, ranging from the top to the
end of the block
3URWRFRO3DUDPHWHU
Following parameters are used to control the block transmission. You can set any
value with the INIT command (described later).
Title Function Initial value Setup range Unit
T1
Time out between characters
RS232 5 (0.5 sec)
1 to 255 0.1 sec
RS485 1 (0.1 sec)
T2
Protocol time out
RS232 5 (0.5 sec)
1 to 255 1 sec
RS485 1 (0.1 sec)
T6
Driver response time
RS232 0 (0ms) 0 to 255
1 ms
RS485 6 (6ms) 2 to 255
RTY
Retry limit 1 (once) 1–8 Once
M/S
Master/Slave 0 (Slave) 0, 1 (Master)
7 3HUPLVVLEOHWLPHLQWHUYDOIRUWKLVGULYHUWRUHFHLYHWKHFRQVHFXWLYHFKDUDFWHUFRGVZKLFKH[LVWV
between the module recognition bytes and ENQ/EOT, or in the transmission/reception data
block. Time out error occurs and the driver returns NAK to the transmitter when the actual recep-
tion time has exceed ed this setup time.
7 3HUPLVVLEOHWLPHLQWHUYDOIRUWKHGULYHUWRWUDQVPLW(14DQGWRUHFHLYH(27,IWKHDFWXDOUHFHS-
tion time exceeds this setup, this represents that the receiver is not ready to receive, or it has
failed to receive ENQ code in some reason, and the driver will re-transmit ENQ code to the re-
ceiver. (retry times)
3HUPLVVLEOHWLPHLQWHUYDOIRUWKHGULYHUWRWUDQVPLW(27DQGWRUHFHLYHWKHUHFHSWLRQRIWKHVW
FKDUDFWHUFRGH7KHGULYHUZLOOUHWXUQ1$.DQGÀQLVKHVWKHUHFHSWLRQPRGHLIWKHDFWXDOUHFHSWLRQ
has exceeded this setup time.
3HUPLVVLEOHWLPH LQWHUYDOIRUWKHPRGXOHWRWUDQVPLWWKHFKHFNVXPE\WHVDQGWRUHFHLYH$&.
The module will re-transmit ENQ code to the receiver in the same way as the NAK reception, if
the actual reception time exceeds this setup time.
7 3HUPLVVLEOHWLPHLQWHUYDO IRUWKHGULYHU WRUHFHLYH(14 DQGWRWUDQVPLW (273HUPLVVLEOHWLPH
LQWHUYDOIRUWKHGULYHUWRUHFHLYHWKHFKHFNVXPE\WHVDQGWRWUDQVPLW$&.DQG3HUPLVVLEOHWLPH
interval for the driver to receive EOT and to transmit the 1st character.
RTY: Maximum value of retry times. Transmission error occurs if the actual retry has exceeds this setup
value.
M/S: Switching of master and slave. When contention of ENQ has occurred, the module decides which
is to be given priority.
Priority is given to the transmitter which is set up as a master. (0: Slave mode, 1 : Master mode)
N
axis
Parameter
(N byte)
check sum
(1 byte)
commandmode
4. Communication
Specifications
Note
2QO\IRUSRVLWLRQFRQWUROW\SHLVQRWSURYLGHGZLWK;&RPPXQLFDWLRQFRQQHFWRUDQG;&RQ-
nector for External Scale).
2QO\IRUSRVLWLRQFRQWUROW\SHGRHVQRWVXSSRUWWKHELWDEVROXWHVSHFLÀFDWLRQ
,WVXSSRUWVRQO\ELWLQFUHPHQWDOVSHFLÀFDWLRQ
 previous next