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2 Simple Application Controllers
Computer Link - Dedicated Protocol 5
5 - 1
5. Computer Link - Dedicated Protocol
The
α
2 Series Controller can transfer data To/From a personal computer, HMI, or other
peripheral equipment via Dedicated Protocol. The structure of the
α
2 (AL2-14MR-*, AL2-
24MR-*) Series computer link protocol is based upon 8-bit binary interpretation and not an
ASCII coded string.
5.1 Data Flow by Link
The computer reads data from the
α
2 (AL2-14MR-*, AL2-24MR-*) Series Controller
OS
Communication
Program
(1) (10)
α
2 Controller
OS
Device
Memory
(6)
(4)
FBD
RS-232
(7)
(5)
Read
Data
(2)
(9)
(3)
(8)
RS-232
Cross cable
AL2-GSM-CAB
Computer
(1) Request Command
S
T
X
(2) RS-232 Cross Cable Connection
(3) AL2-GSM-CAB Cable Connection
(4)
α
2 Controller RS-232 Interface
(5) Operating System
→
Device Memory
Read
(6) Device Memory
→
Operating System
Data
(7)
α
2 Controller RS-232 Interface
(8) AL2-GSM-CAB Cable Connection
(9) RS-232 Cross Cable Connection
(10) Response Data
E
T
X