Modbus Tcp And Pccc Register Map; Figure 67: The Top Entry Is The Modbus Tcp Register And The Bottom Entry Is The Pccc; Table 4: Uptime Registers - Thermo Scientific AquaSensors AV38 User Manual

7.3 Modbus TCP and PCCC Register Map

This section shows the register map for the Modbus TCP and the PCCC.
The PCCC registers are determined from the corresponding Modbus TCP registers as
follows:
Take the Modbus TCP register number of interest, ignore the leading 4
and divide by 100. The quotient is the register file (prefixed with N) and
the remainder is the register number.
For example, to read Modbus TCP register 42,001 (Sensor Value), ignore the leading 4 to
obtain 2,001, and divide 2,001 by 100 to obtain 20 with a remainder of 1. The register
file, then, is N20 and the register is 1, or N20:01.
In the tables in this section, each row contains two entries in the Register Number
column; the top entry is the Modbus TCP register and the bottom entry is the PCCC
register as shown in Figure 67. Both represent the same register in the Ethernet product.
Figure 67: The top entry is the Modbus TCP register
The Uptime registers shown in Table 4 indicate the elapsed time since the power was
applied to the product.

Table 4: Uptime registers.

Register Description
Number
410,000 Uptime in
N100:00 days
410,001 Uptime in
N100:01 hours
410,002 Uptime in
N100:02 minutes
410,003 Uptime in
N100:03 seconds
Thermo Scientific AquaSensors
and the bottom entry is the PCCC register.
Data Access DataStick
Type Command
integer R N/A
integer R N/A
integer R N/A
integer R N/A
™
DataStick
Modbus TCP
Register
PCCC
Register
Comment
Elapsed
time...
since last
reset...
or
application...
of power.
™
Ethernet Communications User Guide
Example Variable
Value Class
3 Information
22 Information
47 Information
16 Information
71