IDEC OpenNet series User Manual

26: LONWORKS INTERFACE MODULE
26-16 OPENNET CONTROLLER USER’S MANUAL
Data Exchange between LONWORKS Interface Module and CPU Module
Communication data, status data, and ID data are exchanged through registers in the LONWORKS interface module and
link registers in the CPU module. The registers correspond to link registers as listed below:
Note: A number 1 through 7 comes in place of * depending on the position where the functional module, such as OpenNet
interface module or analog I/O module, is mounted. Consequently, operand numbers are automatically allocated to each
functional module in the order of increasing distance from the CPU module, starting with L100, L200, L300, through L700.
Example 1: Receive Data in Registers C000h and C001h
When receive data enters registers C000h and C001h in the LONWORKS interface module, the data is transferred to a link
register in the CPU module as illustrated below:
Example 2: Transmit Data in Link Register L*04
When transmit data is stored to link register L*04 in the CPU module, the data is transferred to registers in the L
ONWORKS
interface module as illustrated below:
Register Address in
L
ONWORKS Interface Module
Link Register in CPU Module Function Area
C000h - C001h L*00
Receive Data
Communication
Data Area
C002h - C003h L*01
C004h - C005h L*02
C006h - C007h L*03
C008h - C009h L*04
Transmit Data
C00Ah - C00Bh L*05
C00Ch - C00Dh L*06
C00Eh - C00Fh L*07
C012h L*12 Error Data
Status Area
C013h L*13 I/O Counts
C018h L*24 Software Version
ID Area
C019h L*25 Expansion Module ID
Registers in the
L
ONWORKS Interface Module
C001h (8 bits) C000h (8 bits)
b7 b6 b5 b4 b3 b2 b1 b0 b7 b6 b5 b4 b3 b2 b1 b0
MSB
0000001
LSB
0
MSB
0000000
LSB
1
Link Register L*00
in the CPU Module
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
MSB
000000100000000
LSB
1
Link Register L*04
in the CPU Module
b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0
MSB
011000000010000
LSB
0
Registers in the
L
ONWORKS Interface Module
C009h (8 bits) C008h (8 bits)
b7 b6 b5 b4 b3 b2 b1 b0 b7 b6 b5 b4 b3 b2 b1 b0
MSB
0110000
LSB
0
MSB
0010000
LSB
0
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IDEC OpenNet series Specifications

General

Brand	IDEC
Model	OpenNet series
Category	Controller
Language	English