Status Registers - GMP251

GMP251 User Guide

Document code
M211799EN
Revision
G
Language
English (United States)
Product
GMP251
Document type
User guide
Table 1. Modbus Status Registers (Read-Only)
Register Number (Decimal) Address (Hexadecimal) Register Description Data Format Notes
2049 0800hex Device status 16-bit

0 = Status OK.

1 = Critical error.

2 = Error.

4 = Warning.

2050 0801hex CO2 status 16-bit

0 = Status OK.

2 = CO2 reading not reliable. Appears during transmitter start-up.

256 = Measurement not ready. Appears during transmitter start-up.

Multiple statuses can be present simultaneously. In those cases, the value of the status register is the sum of the status values. For example, the value of the device status register is 6 if a warning (4) and an error (2) are present simultaneously.