Mitsubishi Electronics FR-S500 Communication parameters, Computer Inverter Inverter Computer

Communication parameters

5)Waiting time

Specify the waiting time between the receipt of data at the inverter from the computer and the transmission of reply data. Set the waiting time in accordance with the response time of the computer between 0 and 150ms in 10ms increments (e.g. 1 = 10ms, 2 = 20ms).

Computer

Inverter

Inverter

Computer

REMARKS

Inverter data processing time

= waiting time +	data check time
(setting 10ms)	(12ms)

When communication parameter n7 "waiting time setting" ≠ "- - -", create the communication request data without "waiting time" in the data format. (The number of characters is decremented by 1.)

6) Response time

Data sending time

(refer to the following formula)

Inverter data processing time = waiting time + data check time

(set value 10ms) (12ms)

Computer

Inverter		ACK	ENQ
Inverter	STX	10ms or	10ms or
Computer		more required	more required

Data sending time

(refer to the following formula) Data sending time

(refer to the following formula)

							Inverter data processing time = waiting time + data check time
										(set value 10ms)	(12ms)
		Computer
		Inverter
									ENQ
		Inverter						10ms or
		Computer						more required
							Data sending time
							(refer to the following formula)
[Formula for data sending time]
1			Number of data characters						Communication specification
									(Total number of bits)		= Data sending time (s)
Communication speed			×	(Refer to page 135)				×
	(bps)									(See below)
Communication specification
	Name				Number of Bits
	Stop bit length					1 bit
						2 bits
	Data length					7 bits
						8 bits
	Parity check		Yes			1 bit
			No			0 bit

In addition to the bits in the above table, 1 bit is required for the start bit.

Minimum total number of bits ... 9 bits

Maximum total number of bits ... 12 bits

2

FUNCTIONS

137