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Changes for page 8. Control Setup Manual

Last modified by Iaroslav Platonov on 2026/06/09 11:18
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edited by Lana
on 2025/12/17 19:41
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113 113  Figure 3.1.3. Setting  control for Modbus protocol
114 114  
115 115  [[image:Screenshot 2025-12-17 at 16.41.11.png]]
116 +
117 +Figure 3.1.4. Remote control for IEC-104
118 +
119 +Settings for writing: Write values, Function, Device Tag Data Type, Address, Byte order; Tranformation elements: Physical value (lower limit), Physical value (upper limit), Record value (lower limit), Record value (upper limit).
120 +
121 +The position of the **Write values** switch determines whether value write commands can be sent to the device at the specified address.
122 +
123 +The **Function** field selects the Modbus recording function from the drop-down list (see Fig. 3.1.5).
124 +
125 +[[image:Screenshot 2025-12-17 at 16.41.51.png]]
126 +
127 +Figure 3.1.5. Modbus control function
128 +
129 +FC5 (0x05) - recording the value of one flag (Force Single Coil).
130 +
131 +FC16 (0x10) - recording multiple registers, used to write a block of contiguous registers (1 to 123 registers) to a remote device (Write multiple registers).
132 +
133 +The **Address** field specifies the address of the tag in the device memory to which the value will be written. The address should be a non-negative integer in decimal format.
134 +
135 +The field **Byte order** from the drop-down list (see Fig. 3.1.6) is used to select different order of bytes and/or words in the written CENTO data.
136 +
137 +[[image:Screenshot 2025-12-17 at 16.42.23.png]]
138 +
139 +In the **Device Tag Data Type** field, select the data type used by the device to store values from the drop-down list (see the device manual for details) (see Fig. 3.1.7).
140 +
141 +[[image:Screenshot 2025-12-17 at 16.43.58.png]]
142 +
143 +Fig. 3.1.7. Device Tag Data Type
144 +
145 +In the **Transformation** block, a linear transformation is applied to convert a physical quantity into a value to be recorded, using defined upper and lower limits for both. These limits establish the valid ranges for the physical quantity and its corresponding recorded value, within which data can be filled in (see Fig. 3.1.8).
146 +
147 +[[image:Screenshot 2025-12-17 at 16.44.29.png]]
148 +
149 +Figure 3.1.8. Transformation block
150 +
151 +In devices using the OPC DA protocol, the control function is easier to configure. In the settings, enable **Write values**, select the device tag data type, and define the necessary transformations (see Fig. 3.1.9).
152 +
153 +
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