Man Al2000_eng.pdf - FF-Automation

AL 2000 User Guide
Page 4 - 5
25/05/04
The following functions are available in messages:
Read/write operation
Modbus
read
Modbus
write
Address
offset
Control sw.
Address
FCS sw.
Address
Binary output (O)
Binary memory (M)
Binary memory (GM)
Binary memory (BM)
Binary input ( I )
Word input (W I)
Register output (R O)
Register memory (R M)
Word output 0 ->1023 (W O)
Word memory 0 ->1023 (W M)
Register general memory (R GM)
Word general memory (W GM)
Word output 1024 -> 2047 (W O)
Word memory 1024 -> 4095 (W M)
Word output 2048 -> 4095 (W O)
Word memory 4096 -> 16275 (W M)
01
01
01
01
02
04
03
03
03
03
03
03
03
03
03
03
05, 15
05, 15
05, 15
05, 15
06, 16
06, 16
06, 16
06, 16
06, 16
06, 16
06, 16
06, 16
06, 16
06, 16
0
1024
2048
3072
0
1024
0
1024
2048
3072
4096
5120
6144
7168
10240
12288
00001
01025
02049
03073
10001
31025
40001
41025
42049
43073
45121
46145
47169
SDO 0001
SDO 1025
SDO 2049
SDO 3073
SDI 0001
SAI 1025
SAO 0001
SAO 1025
SAO 2049
SAO 3073
SAO 5121
SAO 6145
SAO 7169
4.3 Setting Up A MODBUS Slave
A MODBUS slave can be set up on SER1and/or SER2 and/or SER3 by following the
steps described below.
Example: Set The Serial Port 3 to SLAVE, baud rate 9600,N,8,1, slave address = 2
STR R C 4
EQ R O 216 ;set SER3 to SLAVE mode
STR R C 4
EQ R O 217 ;set SER3 baud rate to 9600
STR R C 0
EQ R O 218 ; set SER 3 data configuration to 8,N,1
STR R C 2
EQ R O 243 ; set Slave address to 2
See 4.1.3. Serial Port Configuration for available baud rates
The slave address can be from 1 to 255. If the PLC operates as a slave unit on two or
three serial lines, the slave address is the same for all slave channels.
Address 0 is reserved for broadcast messages. A slave cannot have this address.
FF-Automation Oy