Parker Hannifin GEM6K - Manual (Page 16)

Example 6NTIP3,172,34,54,150 ; Identify a DVT camera as Server #6, located at
; IP address 172.34.54.150.
6NTCONN1 ; Attempt the connection to Server #6
Program
Interaction Once a connection has been established, you can write trigger commands to the camera using
the
NTWRIT command.
Example DEL DVT
DEF DVT
6NTCONN1 ; Attempt connection to DVT camera
6NTWRIT"DVT commands" ; Write the text "
DVT commands " to camera
END
Networking with an Allen-Bradley SLC 5/05 PLC
The Allen-Bradley SLC 5/05 exchanges integer and binary data with the 6K. The data
exchange is accomplished by mapping integer variables (
VARI ) and binary variables ( VARB ) in
the 6K with data elements in the PLC’s integer and binary data files. The 6K limits the amount
of variable mapping to 100 binary variables (50 write, 50 read) and 100 integer variables
(50 write, 50 read).
Setup 1. Follow the manufacturer’s setup procedure for each Allen-Bradley PLC, DVT camera
and OPTO22 Ethernet I/O rack.
2. Connect the 6K and Allen-Bradley PLC in a network and configure the 6K for Ethernet
communication according to the procedures on page 4 .
3. Choose a connection number for this device. The 6K can support up to 6 simultaneous
client connections. Pick a number (1-6) that has not been used already for another client
connection. The number is used to reference the device from now on.
4. Enter the IP address of the PLC and specify a 1 for connection type with the NTIP
command. For example, if the PLC is Server #5 and its IP address is 172.20.34.124, then
the command would be
3NTIP1,172,20,34,124 .
5. Attempt a connection to the device with NTCONN . For example, if the server number is 5,
the command would be 5NTCONN1 . If the connection is successful, Network Status bit
#1 is set (see NTS , TNTS , TNTSF ). If the connection is unsuccessful, Error Status bit #23
is set (see ER , TER , TERF ).
6. Map the required integer and binary variables between the 6K and the data files in the
Allen-Bradley PLC. There are four mappings possible (a programming example is
provided below).
• Use the
NTMPRB command to read up to 50 binary elements from a PLC’s binary
file and write them to VARB variables in the 6K.
n NTMPRB i, i, i, i
Network Server #
Range: 1-6
# of Allen-Bradley data file
# of first element in AB data file
(beginning of range)
# of elements in range
# of first binary variable (VARB) in 6K
(beginning of range, max value is 125)
EXAMPLE:
IF:
• Allen-Bradley PLC is server #5
• The PLC’s binary data file 3 has 30
elements. Use data elements 15-29
(15 elements total) for binary data
that is to be shared with the 6K.
• Use the 6K’s binary variables 35-49
(15 variables total) to store the data
from the PLC.
The required mapping command is:
5NTMPRB3,15,15,35
• Use the
NTMPRI command to read up to 50 integer elements from a PLC’s Integer
file and write them to VARI variables in the 6K.
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