Device Addressing; Ocx Function Blocks; Implemented Function Blocks; Table 7-1 Ocx Implemented Function Blocks - Emerson Rosemount OCX8800 Instruction Manual

Section 7: Foundation
Fieldbus
April 2017
7.5.2

Device Addressing

Fieldbus uses addresses between 0 and 255. Addresses 0 through 15 are reserved for group
addressing and for use by the data link layer. For all EMERSON Fieldbus devices addresses 20
through 35 are available to the device. If there are two or more devices with the same address,
the first device to start will use its programmed address. Each of the other devices will be given
one of four temporary addresses between 248 and 251. If a temporary address is not available,
the device will be unavailable until a temporary address becomes available.
7.6

OCX Function Blocks

7.6.1

Implemented Function Blocks

Shows the OCX Implemented Function Blocks.

Table 7-1 OCX Implemented Function Blocks

Function Block
Resource Block
Transducer Block
Analog Input Block 1 (AI1)
Analog Input Block 2 (AI2)
Analog Input Block 3 (AI3)
Analog Input Block 4 (AI4)
PID Block (PID)
Arithmetic Block (ARTHM)
Input Selector Block (ISEL)
94
Description
See TB Channel Assignment
See TB Channel Assignment
See TB Channel Assigbment
See TB Channel Assignment
Proportional/Integral/Derivative of any AI-BLOCK
Arihmetic Function Block
Input Selector Function Block
Instruction Manual
Table 7-17
Table 7-17
Table 7-17
Table 7-17
IM-106-880C, OI
Device
Addressing