Ladder Program - Omron SYSDRIVE 3G3JV User Manual

Communications

7-10-5 Ladder Program

• Transfer the created protocol to the Communications Board.
• The following example describes how to control the Inverter with this protocol.
• Before using this program in your system, be sure to check the word and data memory allocations and
change them if necessary so that there will be no word or data memory duplication.
• This program will stop all communications if a communications error or fault occurs. Be sure to set n68
for communications time-over detection selection to 0 through 2 so that the system will stop with time-
over detection.
H Memory Allocations
D Starting Communications and Status Signals
Word
000000
000001
000002
D Inverter Control Input (Register 0001 RUN Command)
Word Slave 1 function
000100 RUN command
000101 Forward/Reverse
000102 External fault
000103 Fault reset
000104 Always set to 0.
000105 Multi-function input 1
000106 Multi-function input 2
000107 Multi-function input 3
000108 Multi-function input 4
000109 Always set to 0.
000110 Always set to 0.
000111 Always set to 0.
000112 Always set to 0.
000113 Always set to 0.
000114 Always set to 0.
000115 Always set to 0.
D Frequency Reference of Inverter (Register 0002 Frequency Reference)
DM
D00001
D00002
D00003
7-50
Inverter control communications (continued when set to ON)
Communications error output (on hold when a communications error or fault
occurs)
Communications fault reset
Word
000200 RUN command
000201 Forward/Reverse
000202 External fault
000203 Fault reset
000204 Always set to 0.
000205 Multi-function input 1
000206 Multi-function input 2
000207 Multi-function input 3
000208 Multi-function input 4
000209 Always set to 0.
000210 Always set to 0.
000211 Always set to 0.
000212 Always set to 0.
000213 Always set to 0.
000214 Always set to 0.
000215 Always set to 0.
Slave 1 frequency reference
Slave 2 frequency reference
Slave 3 frequency reference
Functions common to all Slaves
Slave 2 function
Function
Chapter 7
Word Slave 3 function
000300 RUN command
000301 Forward/Reverse
000302 External fault
000303 Fault reset
000304 Always set to 0.
000305 Multi-function input 1
000306 Multi-function input 2
000307 Multi-function input 3
000308 Multi-function input 4
000309 Always set to 0.
000310 Always set to 0.
000311 Always set to 0.
000312 Always set to 0.
000313 Always set to 0.
000314 Always set to 0.
000315 Always set to 0.