Flintec DAD 141.1 - Manual (Page 47)

DAD 141.1 Technical Manual, Rev. 2.2 - February 2014 Page 47 of 54
10.10. Communication Setup Commands
– AD, NA, BR, DX, OP, CL, TD
10.10.1. AD Device Address
This command can set up the device address in the value range from 0 to 255.
Master (PC / SPS) sends Slave (DAD 141.1) responds Meaning
AD A:000 Request: Address 0 (= factory default)
AD_49 OK Setup: Address 49
Setting the device address to “0“ will cause the device to be permanently active, listening and responding to
every command on the bus without the need for an OP command.
Note: After editing the address you first have to save the changes (command WP) and then restart the device.
10.10.2. NA Network Address [ Index 0x300C ]
This command displays or sets the network address of DAD 141.1 Ethernet port.
Factory default of TCP/IP address: 192.168.0.100.
Master (PC / SPS) sends Slave (DAD 141.1) responds Meaning
NA A:192.168.000.100 Request: Actual TCP/IP address
NA192.168.11.90 OK Setup: Set the address to 192.168.11.90
Note: A change will take effect after a reset, e.g. power off / on.
10.10.3. BR Baud Rate
With this command the following baud rates can be setup: 9600, 19200, 38400, 57600 and 115200 Baud.
Master (PC / SPS) sends Slave (DAD 141.1) responds Meaning
BR B 115200 Request: 115200 Baud (= factory default)
BR_9600 OK Setup: 9600 Baud
Factory setup: 115200 baud
Note: After editing the baud rate you first have to save the changes (command WP) and then restart the
device.
10.10.4. DX Operation Mode Half-/Full-Duplex
The DAD 141.1 can operate in half or full duplex mode.
Master (PC / SPS) sends Slave (DAD 141.1) resp. Meaning
DX X:001 Request: DX = 1 (full duplex, factory default))
DX 0 OK Setup: DX = 0 (half duplex)
10.10.5. OP Open Device
This command, if sent without parameters, requests the address or device number of the device active on
the bus. If sent with parameters, this enables the device defined by the parameters.
Master (PC / SPS) sends Slave (DAD 141.1) resp. Meaning
OP O:003 Request: Device #3 open
OP_14 OK Setup: Open Device #14
10.10.6. CL Close Devices
This command will close DAD 141.1 device in a bus.
Master (PC / SPS) sends Slave (DAD 141.1) resp. Meaning
CL OK Setup: All devices closed
10.10.7. TD Transmission Delay
In some half duplex applications using a PLC system, a delay of the data transmission (up to 255 milliseconds)
can be helpful due to the very quick answers of the DAD 141.1. Permitted values are 0 to 255 ms.
Master (PC / SPS) sends Slave (DAD 141.1) resp. Meaning
TD T+00000 Request: 0 d – no delay
TD_200 OK Setup: 200 d – 200 ms delay