Electro-Chemical Devices (ECD) T80 - Manual (Page 70)

Register Value 2 Bytes 0x0000 to 0xFFFF
CRC 2 Bytes calculated
*N = Quantity of Registers
Error
Modbus ID (Slave Address)
1 Byte 1 to 247 (0x01 to 0xF7)
Error Code 1 Byte 0x86
Exception Code 1 Byte 01, 02, 03 or 04
CRC 2 Bytes calculated
R
EGISTERS
Per the Modbus Application Protocol Specification (V1.1b)
Name Meaning (2 bytes each register) Number
of
Registers
Return
Data
Format
Read
Write
Requires
Storage
Initiate
Register #
dec hex
Modbus ID (slave address)
Defined as 1 to 247 per the Modbus Application
Protocol Specification (V1.1b)
1
16 bit
Integer
RW 0 00
Data Format
Data Format of the User Bus to the T80 (0-DF8N2, 1-
DF8O1, 2-DF8E1, 3-DF8N1)
1
16 bit
Integer
RW 1 01
Baud Rate
Baud Rate of the User Bus to the T80 (0-1200, 1-
2400, 2-4800, 3-9600)
1
16 bit
Integer
RW 2 02
BusMessage
total message count detected by the slave (remote
device)
1
16 bit
Integer
R 3 03
BusCommunicationsError total CRC error count 1
16 bit
Integer
R 4 04
SlaveExceptionError total count of exceptions detected 1
16 bit
Integer
R 5 05
SlaveMessage
total messages addressed to the slave (remote
device)
1
16 bit
Integer
R 6 06
SlaveNoResponse
total count of messages not responded to by the
slave (remote device)
1
16 bit
Integer
R 7 07
SlaveNAK
total Negative Acknowledges returned by slave
(remote device)
1
16 bit
Integer
R 8 08
SlaveBusy
total count of "slave busy" was returned for an
address message
1
16 bit
Integer
R 9 09
BusCharacterOverrun
count of messages that couldn't be handled due to
character over-run condition
1
16 bit
Integer
R 10 0A
Reset all Modbus Error
Counters
Resets all of the Modbus Error counters (defined in
Modbus spec) to 0, Write any value.
1
16 bit
Integer
W 11 0B
Product T80 Model Number
(Modbus)
The Model Number of the Unit polled 1
16 bit
Integer
R 12 0C
T80 Serial Number (hi word)
Unit Serial Number (32 bit integer hi word, bytes 3
and 2)
2
32 bit
Long
Integer
R
13 0D
T80 Serial Number (lo word)
Unit Serial Number (32 bit integer lo word, bytes 1
and 0)
14 0E
T80 Mode
Unit operating mode (1-Startup, 2-Sensor Search, 3-
Operate)
1
16 bit
Integer
R 15 0F
T80 Fault Status Unit Fault flags, bit defined 1
16 bit
Integer
R 16 10
T80 2nd Fault Status
Unit Fault flags (2nd word reserved, currently not
used)
1
16 bit
Integer
R 17 11
T80 Warning Status Unit Warning flags, bit defined 1
16 bit
Integer
R 18 12
T80 2nd Warning Status
Unit Warning flags (2nd word reserved, currently not
used)
1
16 bit
Integer
R 19 13
T80 FW Rev Firmware revision of the Control BD in ASC, ex. " 1". 1
16 bit
Integer
R 20 14
Relay Number to read/write
Relay number to access data (0 - Relay 1, 1 - Relay 2,
2 - Relay 3)
1
16 bit
Integer
RW 21 15
Relay Type
Read/Write Relay Type (0 - Fault Type, 1 - Alarm
Type, 2 - Disabled, 3 - Timed)
1
16 bit
Integer
RW Y 22 16
Page 69 Model T80