2 foundation fieldbus communication, 1 standard resource block (rb), Operation—foundation fieldbus – Hach-Lange SI792(x) E HACH GLI 3700 series SI792(x) T 7MA2200 and 8398 series User Manual User Manual

Page 49

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Operation—Foundation Fieldbus

47

6.2 Foundation Fieldbus communication

Use the Foundation Fieldbus specification to set up and configure the
si792 transmitter. The communication parameters are listed in the
following sections. The sensor can be calibrated as described in

section 6.2.4 on page 63

.

6.2.1 Standard resource block (RB)

The standard resource block describes the transmitter characteristics
(manufacturer, device name, operating status, global status). The
resource block must be in automatic mode for any of the other blocks to
operate. The bus parameters for the standard resource block (RB) are
shown in

Table 7

.

Table 7 Bus parameters—resource block (RB)

Parameter

Description

Default

R/W

ST_REV Static

revision 0

R

TAG_DESC TAG

description

R/W

STRATEGY Strategy

0

R/W

ALERT_KEY Alert

key

0

R/W

MODE_BLK

Target OOS

R/W

Actual
Permitted OOS,

Auto

Normal Auto

BLOCK_ERR Block

error

R

RS_STATE Resource

state 1

R

TEST_RW Test

R/W

DD_RESOURCE DD

resource

R

MANUFAC_ID Manufacturer

ID

0x001D6D

for

Hach

R

DEV_TYPE Device

type

si792 T: 0068
si792 E: 0066

R

DEV_REV Device

revision 1

R

DD_REV DD

revision 1

R

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