Watlow Series SD6 PID Controller with DeviceNet Addendum Manual do Utilizador descarregar pdf (Página 5)

Watlow Series SD6 PID with DeviceNet ■ 5 ■

Table 8. Identity Object Instance Attributes

Class Services: NONE

Instance Services:

• RESET (O,1) GET ATTRIBUTE SINGLE

DeviceNet Object

Class Code: 03hex

The DeviceNet Object is used to provide the configuration

and status of a physical attachment to DeviceNet.

The MACID attribute provides the network address for the

device. If the rotary switches used to specify the device

MACID are set to a valid MACID, i.e. a value from 0 to 63,

the MACID attribute shall have Get Only access. If the

rotary switches are set to the programmable mode, the

MACID attribute shall have Get and Set access.

The Baud Rate attribute specifies the data rate for the

device. If the rotary switch used to set the data rate speci-

fies a valid data rate, i.e. 125, 250, or 500K Baud, the Baud

Rate attribute shall have Get Only access. If the rotary

switches are set to the software programmable mode, the

MACID shall have Get and Set access.

The Allocate Master/Slave Connection Set service of the

DeviceNet object shall be a required service for all devices.

This implies a requirement that all devices are Group 2

devices on the DeviceNet network. Additionally, all devices

shall support, as a minimum, the Explicit connection and

the I/O Poll connection in the Master/Slave connection set.

The Release Master/Slave Connection Set service of the

DeviceNet object shall be a required service.

Refer to the DeviceNet Specification (Vol. I, Sec. 5-5) for

complete requirements.

Table 9. DeviceNet Object Revision History

Revision Description

01 Initial Release

02 Modification of Baud Rate Attribute

Behavior

Attribute # Access Rule Name DeviceNet Data

Type

Description of

Attribute

Semantics of

Values

1 Get Vendor ID UNIT Identification of each

vendor by number.

This is Vendor ID

153.

See “Semantics”

DeviceNet Spec, Vol.

II, Sec. 6-2.2

2 Get Product Type UNIT Identification of gen-

eral type of product.

This is Type 0.

See “Semantics”

DeviceNet Spec, Vol.

II, Sec. 6-2.2

3 Get Product Code UNIT WATLOW SD6-DN,

CODE IS 105

WATLOW SD6-DS,

CODE IS 104

See “Semantics”

DeviceNet Spec, Vol.

II, Sec. 6-2.2

4 Get Revision STRUCT of: Revision of the item

the Identity Object

represents

See “Semantics”

DeviceNet Spec, Vol.

II, Sec. 6-2.2

5 Get Status WORD Summary status of

device

See “Semantics”

DeviceNet Spec, Vol.

II, Sec. 6-2.2

6 Get Serial Number UDINT Serial number of

device

Set in accordance

with a Watlow manu-

facturing guidelines.

See “Semantics”

DeviceNet Spec, Vol.

II, Sec. 6-2.2

7 Get Product Name SHORT_STRING Human readable ID:

“Watlow Series SD6”

See “Semantics”

DeviceNet Spec, Vol.

II, Sec. 6-2.2

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