Hach 9186, Instrument Manual

Page: 43 / 52

Modbus Communication
43
8.5 Register Information
The fields shown in the register map are as follows:
Register —Modbus register number. Note that each register is 16 bits in length.
Floating point registers occupy two back-to-back 16-bit registers.
Data Type —Representation of the data. Can be floating point, integer,
bit or string.
Length —The number of 16-bit registers.
R/W —R for read only or R/W for read/write.
Units —A number corresponding to the type of units. The names of each unit are
shown in section 8.2.5 on page 39 . An “Rxxxxx” indicates the units are selectable,
and are located in register number xxxxx.
Description —A description of the register.
8.5.1 Register Map
Table 21 Register Map
Register Data Type Length R/W Units (U) Description
40000 Float 2 R R40075 Concentration measurement
40002 Float 2 R R40076 Temperature measurement
40004 Float 2 R 27 Intensity measurement
40006 Float 2 R 28 Flow rate measurement
40008 Float 2 R R40075 Concentration of calibration offset
40010 Float 2 R R40075 Concentration of calibration gain
40012 Float 2 R R40076 Temperature calibration offset
40014 Float 2 R — Reserved for future application
40016 Float 2 R 25 pH calibration gain
40018.1 Bit 1 R — Instrument alarm (programmable)
40018.2 Bit 1 R — Instrument alarm (programmable)
40018.3 Bit 1 R — Instrument alarm (programmable)
40018.4 Bit 1 R — Instrument alarm (programmable)
40019 Integer 1 R — MONEC status
40020 Integer 1 R/W — Alarm 1 type (enum)
40021 Float 2 R/W — Alarm 1 setpoint
40023 Integer 1 R/W — Alarm low/high
40024 Integer 1 R/W 15 Alarm 1 delay
40025 Integer 1 R/W 10 Alarm 1 hyst
40026 Integer 1 R/W — Relay 1 characteristic
40027 Integer 1 R/W — Alarm 2 type (enum)
40028 Float 2 R/W — Alarm 2 setpoint
40030 Integer 1 R/W — Alarm 2 low/high
40031 Integer 1 R/W 15 Alarm 3 delay
40032 Integer 1 R/W 10 Alarm 3 hyst