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Section 2 NS Series Functions
2-11 Multifunction Objects
2-167
NS Series Programming Manual
Prohibiting Simultaneous Pressing
This function stops simultaneous operation with other functional objects.
Other functional objects will not operate while a Multifunction Object set to Prohibit simultaneous
pressing is being pressed.
And Multifunction Objects set to Prohibit simultaneous pressing will not operate while another func-
tional object is being pressed.
2-11-4 Writing and Reading Communications Addresses
Synchronous and Asynchronous Communications
Multifunction Objects can be set to write to more than one communications address. There are two
methods available: synchronous communications and asynchronous communications.
Synchronous communications
Asynchronous communications
When a communications address is read or written,
the next function will be executed only after the re-
sponse for the operation results has been received.
When a communications address is read or writ-
ten, the next function will be executed without
waiting for a response for the write operation re-
sults.
Example
Write Word
Write Bit
Write request
Write result
Write request
Write result
Write request
Write result
Write String
Executes the next function
after the write results have
been received.
Example
Write Bit
Write request
Write result
Write Word
Write request
Write result
Write request
Write result
Write String
Executes the next
function without waiting
for the write results.
N
N
N
o
o
o
t
t
t
e
e
e
♦
The use of synchronous communications is set on the Expansion Settings Tab Page in the
Property Settings Dialog Box for Multifunction Objects.
♦
Synchronous communications takes longer to complete operations than asynchronous commu-
nications but is effective if waiting for the results of one operation execution before performing the
next operation.
♦
Macro execution will be performed with synchronous communications, regardless of the settings.
♦
If functions are executed that do not read or write to a communications address, the next function
will be executed without waiting for a response about the results.
Summary of Contents for NS -
Page 2: ......
Page 12: ...Contents vi NS Series Programming Manual...
Page 46: ...Section 1 Overview 1 5 Procedure before Operation 1 33 NS Series Programming Manual...
Page 590: ...Section 3 Using PTs 3 12 Function Key Settings NS15 Only 3 35 NS Series Programming Manual...
Page 604: ...Section 4 Using Functions 4 1 Application 4 13 NS Series Programming Manual...
Page 640: ...Section 5 Troubleshooting and Maintenance 5 2 Error Messages 5 35 NS Series Programming Manual...
Page 680: ...Appendices Appendix 6 Additional NS Series Functions A 39 NS Series Programming Manual...
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