Description
Digital LED Counter with Communication RS485 RS232 Serial Port Computer Counter Instrument Digital Counter Meter
Product Description
The instrument has 2 communication methods:
Method 1 The meter is the master station, and the meter uploads the counted data 2 times per second Mode 2 The instrument is a slave station, and the peripheral or computer sends the request data first, and then the instrument sends back the counting data
Note
We have following style can choose, pls contact us.
485 communication with relay control output 485 communication without relay control output No communication with relay control output Fixed 232 communication without relay output instrument Fixed 232 communication relay output instrument Counter without communication and relay
Specification
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item
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value
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Working voltage
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+5V
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Working current
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<=80mA
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Working temperature
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<70 degrees Celsius
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Working humidity
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<85%RH
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Frame size
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76.5M X 39.2MM
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Overall dimensions
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79*42*30M
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Digital tube
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0.56 inches*4 bright red
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Shell material
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ABS gray plastic shell
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Window material
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red translucent PVC
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Using circuit
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12C5606AD/74HC164/75176/PC181
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Installation Instructions
Front panel key definition
Button definition K1: set, K2: set +, K3: count, K4: clear How to set the machine number (station number), communication (sending) method: Press K1, the screen displays "J-001", which means entering the machine number setting state, the machine number is 1, press K2 machine number to increase 1, continuously press K2 machine number to quickly increase 1, press K4, modify the machine number to subtract 1 ,Press K4 continuously to decrease continuously. After the machine number is set, press K1 again; The screen displays "F--1" to indicate that it enters the communication mode setting state, press K2 or K4, the communication mode changes from mode 1 to mode 2,
Rear terminal definition
1 foot/2 feet: 485_ B-/A+ 3 feet: GND 4 feet: +5V 5 feet: GND 6 feet: counting 7 feet: clear 6 feet: counting port (low effective), can be connected to switches, buttons, NPN normally open proximity switch and photoelectric switch, 3144 Hall 7-pin: clear port (active low), button can be linked; Note 1: Explanation of the meaning of the characters on the screen flashing when powering on Display "J-001", which means the machine number (station number) is 1; Display "F---1", indicating that the sending mode of this machine is mode 1; Note 2: Explanation of communication method and relay closing method When "F--- -1", it means that the sending mode of the machine is mode 1. It is the meter actively sending the count value out about 2 times per second. Its characteristic is that it does not need external request and it is always sending out. Send count value; When "F---2", it means that the sending mode of the machine is mode 2. The meter does not send data at ordinary times. Only when the meter receives a request from an external device, it will send back the count value; Note 3: Explanation of remote resetting can be done by externally requesting resetting You can use an external send request clearing command to force the meter to be forced to clear; The condition for requesting to reset is to send "FA machine number FE" data externally in mode 2. When the machine receives the data, it will be forced to reset immediately, and the original data "FA machine number FE" will be returned to indicate that the reset is successful. ; Note 4: Parameters saved after power failure The machine number and sending method set during power outage are all saved; The count value will be cleared when the power fails;
Communication rules code
A) "F---1" means sending mode 1, actively sending the data counted by the machine 2 times per second; Example: Method 1 upload the data of the machine 1# count 2565 F1 (synchronization header code) 01 (machine number) 0A05 (data 2565) FE (end code) The uploaded header code is: F1 B) "F----2", means sending mode 2, only send counted data when external request data; Example: Method 2 makes a request to this machine 1#, requesting data, the header code of the request is: F2 F2 (Sync header code) 01 (request machine number) FE (end code) This machine (No. 1), receives the request command, sends back the data, and the header code of the reply is: F2 FA (Sync header code) 01 (request machine number) 1001 (data 4097) FE (end code) C) Request clearing function: external request to clear the 1# count, send the code as follows (this function is only available in mode 2); The header code to be cleared is: FA, FA (synchronization header code) 01 (request machine number) FE (end code) The header code for clearing and replying to the successful clearing is: FA (synchronization header) 01 (request machine number) FE (end code) 2 ways of counting table routines: In mode 1 "F---1", it is characterized by automatically sending count data to the peripheral 2 times per second, The count table of this machine (No. 2) sends a count of 2571 to the peripheral, for example, as follows 1: FA (Sync header code) 02 (machine number) 0A0B (data 2571) FE (end code) In mode 2 "F---2", its characteristic is that the peripheral sends a command request, and the machine only sends count data. The peripheral requests data from the machine (No. 1) and sends the following to the machine: F2 (Sync header code) 01 (request machine number) FE (end code) The count table of the machine (No. 1) sends a count of 5139 to the requested peripheral, and the machine replies as follows: F2 (Sync header code) 01 (Reply to machine number) 1413 (Data: 5139) FE (end code)
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