◀ ◀ D400 Series Operating Manual Preface Please read this manual carefully before use. When receiving the instrument, please open the package carefully, check whether the instrument and accessories are damaged by trans- portation and whether the accessories are complete. If any abnormalities are found, please contact our after-sales service department or regional customer service center, and keep the package for return processing.
◀ ◀ D400 Series Operating Manual Instrument Connection NO 1 COM 1 Temp NC 1 Temp NO 2 Input COM 2 NC 2 pH/ORP Pow DC+ Pow ACL (9–36V) (85–265V) Cur 1+ Pow DC- Pow AC N Pow PE Com - Pow PE Cur 2+ RS -485 B...
◀ ◀ D400 Series Operating Manual Keypad Descriptions Keypad Operation Tips: Short Press: press the button and release immediately. if not specified below, means short press. Long Press: press the button for 3 seconds and then release it. Press and hold: hold the button for a while and press the button until the right data is displayed then release the button.
◀ ◀ D400 Series Operating Manual Display Descriptions Check all pipe connections and electrical connections before use. The instrument will display as shown in the figure below after the power is turned on. Instrument type pH / ORP 4.01 Sensor Communication Warning Main measurment + Unit Temp.
◀ ◀ D400 Series Operating Manual Menu Structure Press [MENU] key to enter programming mode: If the monitor prompts you to enter the calibration security password, press the key to set the calibration security password, and then press the [ENT] key to confirm the calibration security password. No initial password here, please enter directly by pressing the [ENT] key.
◀ ◀ D400 Series Operating Manual Item Display Selection Sub Menu Main Channel Temperature 4-20mA (Default) Output Option 0-20mA Current 1 20-4mA Upper Limit 00.00 Lower Limit 00.00 Output Main Channel Temperature 4-20mA (Default) Current 2 Output Option 0-20mA 20-4mA Upper Limit 00.00 Lower Limit...
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◀ ◀ D400 Series Operating Manual Calibration of Standard Solution Select the Standard Solution Calibration, USA: 7.00, 4.01, 10.01 NIST: 6.86, 4.01, 9.18. After the selection is completed, press the [ENT] button to enter the calibration mode Submerse sensor into individual reference solutions different for 10 seconds min. Note: begin with 7.00 USA - 6.86 NIST reference solution.
◀ ◀ D400 Series Operating Manual MODBUS RTU General Information Overview The hardware version number of this document is V2.0; the software version number is V5.9 and above. This document describes the MODBUS RTU interface in details and the target object is a software programmer. MODBUS Command Structure Data format description in this document;...
◀ ◀ D400 Series Operating Manual MODBUS RTU Transmission Mode When the instrument uses RTU (Remote Terminal Unit) mode for MODBUS serial communication, each 8-bit byte of information contains two 4-bit hexadecimal characters. The main advantages of this mode are greater character density and better data throughput than the ASCII mode with the same baud rate.
◀ ◀ D400 Series Operating Manual MODBUS RTU CRC Check The RTU mode contains an error-detection domain based on a cyclic redundancy check (CRC) algorithm that performs on all message contents. The CRC domain checks the contents of the entire message and performs this check regardless of whether the message has a random parity check.
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◀ ◀ D400 Series Operating Manual The following illustrates the request frame and response frame with the read and hold register 108-110 as an example. (The contents of register 108 are read-only, with two-byte values of 0X022B, and the contents of register 109-110 are 0X0000 and 0X0064) Request Frame Response Frame Number Systems...
◀ ◀ D400 Series Operating Manual The request frame and response frame are illustrated below in two registers that write the values 0x000A and 0x0102 to the start address of 2. Request Frame (hexidecimal) Response Frame (hexidecimal) Number Systems 0x10 Function code 0x10 Function code...
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◀ ◀ D400 Series Operating Manual Reference code: 1. If the compiler used by the user has a library function that implements this function, the library function can be called directly, for example, using C language, then you can directly call the C library function memcpy to obtain an integer representation of the floating- point storage format in memory.
◀ ◀ D400 Series Operating Manual Read Instruction Mode The communication protocol adopts MODBUS (RTU) protocol. The content and address of the communication can be changed according to the needs of customers. The default configuration is network address 01, baud rate 9600, even check, one stop bit, users can set their own changes;...
Warranty Icon Process Controls warrants this product to be free from significant deviations in material and workmanship for a period of one year from the date of purchase. If repair is necessary and has not been the result of abuse or misuse within the warranty period, please return to Icon Process Controls and amendment will be made without any charge.
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◀ ◀ Need a great sensor? Pair your D400 Series controller with the industry’s most innovative and reliable sensing technology ico np rocon.com 22-0004 01/19/23...
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