AutomationDirect Stride SIO-MB12CDR Руководство пользователя - Страница 2
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GENERAL DESCRIPTION
Modbus data is mapped in tables and assigned an address. Data can be of two types:
• REGISTER, 2 bytes (word of 16 bits) that can be associated to an analog input or output, a variable, a setpoint, etc.
• COIL, 1 bit that can be associated to a digital input or output, or to a logic state.
A register could contain the image (mirror) of a group of coils; for example, the digital inputs or outputs of a device could be read or
written as individual bits addressing the coil related to each or can be read or written as a word addressing the register where each bit
corresponds to a coil. Modbus registers and coils are divided into the following groups of addresses:
• 0xxxx and 1xxxx = Coils (bit)
• 3xxxx and 4xxxx = Registers (word)
When reading functions are performed, use the tables indicated below to address the registers. These registers may be addressed by a
Modbus TCP/IP server or by the integrated web server.
REGISTER ADDRESSES
Register
40002
40003
40004
40005
40007
40011
40012
Power Up / Safe
40013
40031
40032
40033
Digital Inputs Rise Latch
40034
Digital Inputs Fall Latch
40035
Frequency, Digital Input 0
40036
Frequency, Digital Input 1
40037
Frequency, Digital Input 2
40038
Frequency, Digital Input 3
40039
32-bit Counter, Digital Input 0
40041
32-bit Counter, Digital Input 1
40043
32-bit Counter, Digital Input 2
40045
32-bit Counter, Digital Input 3
SUPPORTED MODBUS FUNCTION CODES
Function
01
02
03
Read Holding Registers (4xxxx)
04
Read Inputs Registers (3xxxx)
05
06
15 (0x0F)
16 (0x10)
NOTES:
• Registers and coils marked as RO in the column 'Access' are Read Only registers.
• Registers and coils marked as R/W in the column 'Access' are Read and Write registers.
• The group of 0xxxx addresses mirrors the group of 1xxxx addresses; the group of 3xxxx addresses mirrors the 4xxxx addresses.
Therefore the first register could be addressed either as 30002 (with function 04) or 40002 ( with function 03).
• A maximum of 128 coils can be read through Modbus function codes 01 and 02 (see "Supported modbus functions codes").
• A maximum of 64 registers can be read through Modbus function codes 03 and 04 (see "Supported modbus functions codes").
• A maximum of 64 registers can be written by Modbus function code 16 (see "Supported modbus functions codes").
• A maximum of 64 coils can be written by Modbus function code 15 (see "Supported modbus functions codes").
SIO-MB12CDR User Guide, 1st Edition
Description
Access
Firmware [0]
Firmware [1]
-Reserved-
-Reserved-
Node ID
System Flags
Watchdog timer
Digital Outputs
Digital Inputs
Description
Read Coil Status (0xxxx)
Read Inputs Status (1xxxx)
Force Single Coil
Preset Single Register
Force Multiple Coils
Preset Multiple Registers
Coil (Hex) Coil (Dec)
RO
0x00A1
00161
RO
0x00A2
00162
RO
0x00A3
00163
RO
0x01E9
00489
R/W
0x01EA
00490
R/W
0x01EB
00491
R/W
0x01EC
00492
R/W
0x01F9
00505
R/W
0x01FA
00506
RO
0x01FB
00507
R/W
0x01FC
00508
R/W
0x01FD
00509
RO
0x01FE
00510
RO
0x01FF
00511
RO
0x0200
00512
RO
0x0209
00521
R/W
0x020A
00522
R/W
0x020B
00523
R/W
0x020C
00524
R/W
0x020D
00525
0x020E
00526
0x020F
00527
0x0210
00528
0x0219
00537
0x021A
00538
0x021B
00539
0x021C
00540
0x021D
00541
0x021E
00542
0x021F
00543
0x0220
00544
Stride Field I/O
COIL ADDRESSES
Description
Watchdog Enable
Watchdog Event
Power Up Event
Output #0
Output #1
Output #2
Output #3
Input #0
Input #1
Input #2
Input #3
Input #4
Input #5
Input #6
Input #7
Rising Edge Latch #0
Rising Edge Latch #1
Rising Edge Latch #2
Rising Edge Latch #3
Rising Edge Latch #4
Rising Edge Latch #5
Rising Edge Latch #6
Rising Edge Latch #7
Falling Edge Latch #0
Falling Edge Latch #1
Falling Edge Latch #2
Falling Edge Latch #3
Falling Edge Latch #4
Falling Edge Latch #5
Falling Edge Latch #6
Falling Edge Latch #7
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
RO
RO
RO
RO
RO
RO
RO
RO
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
1