Allen Bradley 2711T-B10I1N1 is an industrial automation control component produced by Rockwell Automation of the United States. It belongs to the PanelView series of human-machine interface (HMI) or PLC-related modules and is mainly used for data exchange and control in industrial automation systems. This module requires signal modulation to function properly. It can be directly connected to common fixed-code encoders, such as PT2262/2272. It also has FactoryTalk View ME software built in, which makes its functions very powerful and flexible.
In scenarios where long-distance transmission is required,Allen Bradley 2711T-B10I1N1 can be used as an independent module and in conjunction with dedicated encoder/decoder chips (such as PT2262/2272) to achieve simple signal transmission and control. When communicating data with a microcontroller, communication speed, information encoding format design and anti-interference measures are all factors that must be taken into consideration. Complex industrial automation systems use it to process data. Enterprise technicians should receive training in a timely manner and contact Hannite when necessary.
The maximum transmission rate of Allen Bradley 2711T-B10I1N1 is 9.6KB/s. It is recommended to maintain a rate of around 2.5KB/s. Exceeding this rate will reduce receiving sensitivity, increase bit error rate and shorten service life. The recommended structure for information encoding format is "preamble code + synchronization code + data frame". The preamble length should be greater than 10 milliseconds to avoid background noise interference. Synchronization codes are used to distinguish signal phases. It is recommended that the data frames be encoded in Manchester or POCSAG to avoid long 0/ long 1 sequences. When connecting the 51 series single-chip microcomputer, an isolation circuit must be added to reduce electromagnetic interference. The module output is a high-level pulse. During debugging, a 3K resistor and an LED can be connected in series to monitor the status of the module. The company's technical personnel should pay special attention to this point.
When using the dedicated codec chip, the transmission distance of Allen Bradley 2711T-B10I1N1 can reach more than 600 meters. However, when using microcontrollers or microcomputers, due to electromagnetic interference, the actual distance is usually less than 200 meters. Do not directly test the module output with a multimeter (the output is a pulse signal, not a DC level). It is recommended to use light-emitting diodes with series resistors for condition monitoring. Technicians should pay special attention to this point.
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