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4.3 Requests to the DN611
4
(4) Slave device parameters
PARA_SLAVE structure
DEVICE_ARRAY [0...9] Structural data type Slave device parameter set value
DEVICE structure
PORT
WORD type
Port No.
SLAVE_ADR
WORD type
Slave node address
VENDOR_ID
WORD type
Vendor ID
P_TYPE
D type
Product type
P_CODE
WORD type
Product code
SCANTYPE
WORD type
Scan type
POL_BK
WORD type
Poll background
BS_RCVSIZE
WORD type
Bit strobe receive size
POL_RCVSIZE
WORD type
Polling receive size
RESERVED1
WORD type
Reserved
POL_SNDSIZE
WORD type
Polling send size
RESERVED2
WORD type
Reserved
MAJOR_REV
WORD type
Major revision
MINOR_REV
WORD type
Minor revision
RESERVED3
WORD type
Reserved
RESERVED4
WORD type
Reserved
For those items marked (*), refer to the manual for the slave devices.
Table 4-14 Slave Device Parameters
Parameter
Description
Port No.
Set 0 fixed.
Slave node address
Specify a node address for a slave whose parameters are to be set.
Range of setting: 0 to 63
Vendor ID
Specify a vendor ID for a slave whose parameters are to be set.
(*)Product type Specify the product type of a slave whose parameters
are to be set. (*)
Product code
Specify the product code of a slave whose parameters are to be set. (*)
Scan type
Specify a mode of transmission between DN611 and slave. (*)
0: Bit strobe
Other than 0, 1, 2:
1: Polling
Cannot be set.
2: Bit strobe and polling
Poll background
Specify an interval at which DN611 accesses devices.
00: Scan polling (Access every scan)
01: Background polling (Access every scans specified in poll ratio)
Bit strobe receive size Specify a size of data from a slave of bit strobe type to DN611 in bytes. (*)
Polling receive size
Specify a size of data from a slave of polling type to DN611 in bytes. (*)
Polling send size
Specify a size of data from DN611 to a slave of polling type in bytes. (*)
Major revision
Specify a slave major revision. (*)
Minor revision
Specify a slave minor revision. (*)
Reserved
Set 0.