Modbus Register Map - HMS Anybus CompactCom B40 Modbus Serial User Manual

Modbus Application Interface
3.3

Modbus Register Map

The Modbus register space is designed to allow easy and efficient communication using a single
cyclic read/write Modbus command.
Register#
0x0000 -
0x0FFD
0x0FFE
0x0FFF
0x1000 -
0x5003
Anybus ® CompactCom ™ B40 Modbus Serial User Manual
Name Access
Write process data Read/
Write
Anybus Switch status Read only
LED status
Read only
Anybus status
Read/
Write
Read process data Read only
Module type Read only
Description
When the last byte of mapped process data is written, data is sent
to the network for consistency reasons.
Value of INPUT1 and INPUT2 pins.
INPUT1: LSB
INPUT2: MSB
Bit field holding the current state of the network status LEDs as
follows:
Bit: Contents:
LED1A status (0=OFF, 1=ON)
b0:
b1: LED1B status (0=OFF, 1=ON)
b2: LED2A status (0=OFF, 1=ON)
LED2B status (0=OFF, 1=ON)
b3:
b4: LED3A status (0=OFF, 1=ON)
b5: LED3B status (0=OFF, 1=ON)
b6: LED4A status (0=OFF, 1=ON)
b7: LED4B status (0=OFF, 1=ON)
b8 - b15 (reserved)
Anybus status register with two additional bits, Reset and Set
Default added.
Description
Bit(s)
0 - 2
Anybus state (See
0. Setup
1: NW_INIT
2: WAIT_PROCESS
3: IDLE
4: PROCESS_ACTIVE
5: ERROR
6: (reserved)
7: EXCEPTION
3 SUP
0: Module is not supervised
1: Module is supervised by another network device
The SUP bit indicates the overall status of the network
communication. For example, on CIP, this bit indicates
that the master has a connection towards the module.
Exactly how this functionality should be handled, the
offered level of security, and how to correctly activate
it is network specific and often depends on external
circumstances, e.g. configuration of the network as
well as other network devices. Whether use of the
SUP-bit is appropriate must therefore be decided for
each specific application and network.
4 -13 (reserved)
14
Set Default
0: No action
1: Application is requested to set "factory default" to
all parameters/settings. Application shall acknowledge
this by writing 1 to this bit to clear it.
15 Reset
0: No action
1: Application is requested to reset the Anybus
CompactCom
Area is updated with new data from Network ONLY when address
0x1000 is read.
Anybus CompactCom 40 (0x0403)
11 (48)
The Anybus State Machine, p. 42)
SCM-1202-130 1.1 en-US