Gemini GV6K and Gemini GT6K Programmer's Guide

Example
NTADDR172,34,54,123 ; Set the IP address of the Gem6K
OPTEN0
; Disable the option card (for Fieldbus units
only)
RESET
NTFEN2
; Enable network function on Gem6K
RESET
5NTIP1,172,34,54,124 ; Identify network server #5 as an Allen Bradley
PLC
; at IP address 172.34.54.124
5NTCONN1 ; Connect to network server #5
5NTMPRB11,7,1,106 ; File 11, element 7 in the AB PLC is mapped to
the Gem6K's
; binary variable VARB106
5NTMPRI20,5,2,128 ; File 20, elements 5-6 in the AB PLC are mapped
to
; the Gem6K's integer variables VARI128-VARI129,
respectively
5NTMPWB11,3,4,100 ; File 11, elements 3-6, in the AB PLC are
mapped to
; the Gem6K's binary variables VARB100-VARB103
5NTMPWI20,3,2,120 ; File 20, elements 3-4, in the AB PLC are
mapped to
; the Gem6K's integer variables VARI120-VARB121
5NTPOLL50
; Start polling network server #5, set interval
to 50 ms.
;
*********************************************
************************
; The Gem6K's VARB106 will read from the PLC's File 11, element 7.
; The Gem6K's VARI128-VARI129 will read from the PLC's File 20,
elements 5-6.
; The PLC's File 11, elements 3-6 will read from the Gem6K's
VARB100-VARB103.
; The PLC's File 20, elements 3-4 will read from the Gem6K's
VARI120-VARB121.
;
*********************************************
************************
Program
Interaction
After the connection is established, mapping has been set up, and polling enabled, the Gem6K
starts exchanging data automatically with the PLC. Here is how to:
• Write a binary variable to the PLC: Simply write a value to one of the VARB variables in
the NTMPWB mapping. The new data will be written to the binary file during the next poll.
• Write an integer variable to the PLC: Simply write a value to one of the VARI variables in
the NTMPWI mapping. The new data will be written to the integer file during the next poll.
• Read a binary variable from the PLC: The VARB variables in the NTMPRB mapping
correspond to the values in the binary file in the PLC.
• Read an integer variable from the PLC: The VARI variables in the NTMPRI mapping
correspond to the values in the integer file in the PLC.
Chapter 2. Communication 53