Programación Plc - Rice Lake Weighing Systems Motoweigh Manual De Operación

9. En la pantalla de Configuración PLC del detector de metales, verifique que que ambas casillas del Status
son verdes.
5.4 PROGRAMACIÓN PLC
1. The PLC communicates with the Metal Detector using two 6-word blocks of memory in the Generic
Ethernet Module. Each word is 16 bits.
MD:O.
Data[0]
Data[1]
Data[2]
Data[3]
Data[4]
Data[5]
2. The PLC initiates all communication with the Metal Detector by first filling in the necessary output (send)
parameters, then writing (a command) to MD:O.Data[1].
3. When the Metal Detector responds with the same command and any associated
parameters, the PLC writes a NO-OP command 0xFF to MD.O.Data[1] and the Metal Detector responds
with 0x00.
4. The following Metal Detector commands are available
70 Manual de Operación de Detección de Metales
Figura 5-8. Pantalla de Configuración PLC del Detector de Metales
PLC output
reserved
command
param 1 to send
param 2 to send
param 3 to send
reserved
Tabla 5-1. Comunicación PLC
MD:I. PLC input
Data[0] metal detector status
command confirmation
Data[1]
received param 1
Data[2]
received param 2
Data[3]
Data[4] received param 3
Data[5] metal detector heartbeat
input (receive)