PPM Register

Register 0x001Eh

R

32 bytes

 

 

 

 

 

 

Variable

Type

Length

 

Description

 

 

 

 

 

 

PPM

UI

32 bytes

 

16 Unsigned Integers that represent the PPM values for

 

 

 

 

each AGM300 zone

 

 

 

 

 

 

NOTE: 16 values are returned independent of the number of actual zones installed in the unit. The master device is required to know how many zones are installed in the unit (available in the System Register) in order to properly interpret the data.

Zone Log Registers Register 0x3xyyh R 1502 bytes

These registers are used to transfer the zone log data. Each zone has a circular log of 100 past data points. The period between data points is defined by the Log Interval parameter in each corresponding Zone Data Register. The data for each zone is defined by the “x” place in the above register address. For zone 1 the Register address is 0x30yyh, for zone 2 the register address is 0x31yyh, etc. The data for each zone is sent in 8 consecutive registers due to MODBUS RTU message length constrains. The addresses are defined by the “yy” place in the above address. For zone 1, all log data can be obtained by reading 0x3000h, 0x3001h, 0x3002h, …… , 0x3007h. The first seven registers contain 200 bytes each and the last register contains 102

bytes. After all registers have been received the data should be reassembled into the full data structure.

Variable

Type

Length

Description

 

 

 

 

Index

UI

2

Point to current reading

 

 

 

 

Time

TIM

1300

Time record for each of the 100 log points. The format

 

 

 

for the TIM type is defined in note 2 of zone data

 

 

 

 

PPM

UI

200

Last 100 log points (2 byes per point)

 

 

 

 

MODBUS EXCEPTION RESPONSES

The following MODBUS exception response are supported by the AGM300:

01 Illegal Function

02 Illegal Data Address

06Slave Device Busy (Occurs only when AGM300 is connected to the bus through an ADM800 and the ADM800 is not in the SYSTEM or ZONE VIEW screen)

80

Instruction 3015-4275

Page 88
Image 88
Bacharach ADM800, AGM300 manual Point to current reading, Time record for each of the 100 log points. The format

AGM300, ADM800 specifications

The Bacharach ADM 800 and AGM 300 are advanced analyzers designed for efficient monitoring and detection of gases in various applications. Known for their reliability and accuracy, these instruments cater to commercial and industrial sectors, ensuring safety and compliance with environmental regulations.

The Bacharach ADM 800 is a portable gas detection device renowned for its ability to detect multiple refrigerants. With a user-friendly interface, it features a high-resolution display that provides real-time data on refrigerant concentrations, allowing technicians to quickly identify leaks during maintenance operations. One of its standout technologies is a highly sensitive thermal conductivity sensor, which enables the ADM 800 to differentiate between various hydrocarbon refrigerants with precision.

Equipped with data logging capabilities, the ADM 800 can store and retrieve measurement data, making it an invaluable tool for tracking refrigerant trends over time. The device supports USB connectivity for easy transfer of data to computers, facilitating detailed reporting and analysis. Its robust design incorporates a protective casing that ensures durability in challenging work environments, making it ideal for both field use and stationary applications.

On the other hand, the Bacharach AGM 300 is specifically crafted for continuous gas monitoring in HVAC systems. This stationary device excels in measuring concentrations of gases such as CO, CO2, and various refrigerants, ensuring optimal performance and compliance. The AGM 300 uses advanced electrochemical sensors for precise gas measurements, providing real-time feedback and alerting users to any hazardous conditions.

One of the notable features of the AGM 300 is its ability to integrate seamlessly with building management systems, enabling centralized control and monitoring of gas levels across multiple locations. This connectivity enhances the safety of industrial and commercial spaces by allowing for automated responses to detected gas levels, which can significantly mitigate risks associated with gas leaks.

Both models emphasize user-centric design, with intuitive interfaces and clear displays, making them accessible even to those with minimal training. Additionally, their low maintenance requirements and long sensor life contribute to reduced operational costs.

In conclusion, the Bacharach ADM 800 and AGM 300 are exemplary solutions for gas detection and monitoring. Their advanced technologies, robust features, and user-friendly designs make them indispensable for ensuring safety and regulatory compliance in various environments.