Mitsubishi Electric qd63p6, Руководство пользователя

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3
- 11 3.4 Buffer Memory Assignment
3.4.2 Details of the buffer memory
3
SPECIFICATIONS
3.4.2 Details of the buffer memory
This section describes details of the QD63P6 buffer memory.
Each item contains the I/O numbers (X/Y) and buffer memory addresses of channel 1 only.
For buffer memory addresses of channel 2 or later and I/O numbers (X/Y) of channel 2 or
later, refer to Section 3.4.1 and Section 3.3.1, respectively.
(1) Ring counter lower limit value (Un\G0 and 1)
Ring counter upper limit value (Un\G2 and 3)
• This area is used for setting count range when the counter format is the ring
counter. (Refer to Section 5.2.2.)
• Setting value when the count enable command (Y04) changes from OFF to ON
becomes effective.
• Setting range is from -2147483648 to 2147483647 (32-bit signed binary).
Figure 3.1 Timing chart for the ring counter lower limit value (Un\G0 and 1) and ring counter upper limit value (Un\G2 and 3)
(2) Preset value setting (Un\G4 and 5)
• This area is used for setting the preset value for the counter. (Refer to Section
5.4.)
• Setting value when the preset command (Y02) changes from OFF to ON
becomes effective.
• Setting range is from -2147483648 to 2147483647 (32-bit signed binary).
Figure 3.2 Timing chart for the preset value setting (Un\G4 and 5)
• For details of the general operation, refer to Section 5.4.
Count enable command
(Y04)
Ring counter lower limit value
(Un\G0 and 1)
Ring counter upper limit value
(Un\G2 and 3)
ON
-200 -100 0
200 100 0
*1
*1
*2
*2
*1: Value when the count enable command (Y04) changes from OFF
to ON becomes effective.
*2: Does not become effective until the count enable command (Y04)
changes from OFF to ON.
Performed by the QD63P6.
Preset value setting
(Un\G4 and 5)
Preset command
(Y02)
Present value
(Un\G10 and 11)
OFF
ON
t*
100
100 0
* t 2ms