8 INSTRUCTIONS FOR DATA LINK
8.3 Refresh Device Write/Read Instructions
837
8
• Do not execute the instruction in an interrupt program. If the instruction is executed, no processing is performed. In
addition, the completion device ((D1)+0), the completion device ((D1)+1), and SM739 do not turn on. If the instruction is
executed in a fixed scan execution type program, they also do not turn on.
• When the instruction is executed, do not rewrite the device data in (S2) until the completion device turns on.
• Specifying digit for the bit device can be used only when the following conditions are met.
When the above conditions are not met, INSTRCT CODE ERR. (error code: 4004) will occur.
• Digit specification: K4
• Head of device: multiple of 16
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