42
Chapter 2
Memory Map
15. RWwm (m+1) bit 7: Error cancel
To cancel the error status, this bit will be turned on (will bet set to ‘1’).
If this bit is turned on, the error status will be canceled.
At the completion of error status canceling, turn off this bit (set this bit to ‘0’).
Note: If the cause of the error is not eliminated, the error signal will be output again.
16. RWwm (m+1) bit E: Transmission frame check request
Use the transmission frame check request to check whether the output data is transferred to the
S-LINK V
unit. To send two different outputs to the same address, use this request signal. This is because if the next
data is set before transferring the previously set output data to the unit, the previously set output data will be
ignored. However, after setting output data, if this request signal is turned on (set to ‘1’), RWrm (m+1) bit E
(completion of transmission frame check) signal will be turned on (will be set to ‘1’) after transferring the set
output data to the unit.
Using the program, check whether RWrm (m+1) bit E (completion of transmission frame check) is turned on
(set to ‘1’), and then set the next data to prevent an output data transfer error.
To repeatedly use the transmission frame check signal, turn off (set to ‘0’) RWwm (m+1) bit E (transmission
frame check request), and then check whether RWrm (m+1) bit E (completion of transmission frame check)
signal is turned off (set to ‘0’). After that, turn on (set to ‘1’) the transmission frame check request again.
Transmission frame check request
1
0
Completion of transmission frame check
1
0
Transmission frame processing
Processing
17. RWwm (m+3) bit 0: Connection information change request
Use the connection information change request to change the data that will be stored in RWrm (m+2) bit 0 to
8 (number of nodes bit 0 to 8), and RWrm (m+4) to RWrm (m+F) (address information 0 to 191 / 192 to 255).
●
If RWwm (m+3) bit 0 (connection information change request) is turned off (set to ‘0’)
Number of nodes (
S-LINK V
I/O units) recognized by the
SL-VGU1-C
will be stored in RWrm (m+2) bit
0 to 8 (number of nodes bit 0 to 8), and the address information will be stored in RWrm (m+4) to RWrm
(m+F) (address information 0 to 191 / 192 to 255).
●
If RWwm (m+3) bit 0 (connection information change request) is turned on (set to ‘1’)
Number of nodes (
S-LINK V
I/O units) connected to the
S-LINK V
system, those error 3, 4, or 5 is detect-
ed will be stored in RWrm (m+2) bit 0 to 8 (number of nodes bit 0 to 8), and the address information will be
stored in RWrm (m+4) to RWrm (m+F) (address information 0 to 191 / 192 to 255).
18. RWwm (m+3) bit 8: Address information change request
Use the address information change request to change the data that will be stored in RWrm (m+C) to RWrm
(m+F) (address information 128 to 191 / 192 to 255).
●
If RWwm (m+3) bit 8 (address information change request) is turned off (set to ‘0’)
Information of address 128 to 191 (
S-LINK V
I/O units) will be stored in RWrm (m+C) to RWrm (m+F) (ad-
dress information 128 to 191 / 192 to 255).
Bit corresponds to the address will be turned on (set to ‘1’).
●
If RWwm (m+3) bit 8 (address information change request) is turned on (set to ‘1’)
Information of address 192 to 255 (
S-LINK V
I/O units) will be stored in RWrm (m+C) to RWrm (m+F) (ad-
dress information 128 to 191 / 192 to 255).
Bit corresponds to the address will be turned on (set to ‘1’).
Содержание SL-VGU1-C
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