A6.4 flow of software download, A6.4, A-35 – Yokogawa Multi Channel Oxygen Analyzer System ZR22/AV550G User Manual

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A-35

IM 11M12D01-61E

The download tool can not execute downloading during other system connects to the system/ network

management VFD of the device.

A6.4 Flow of Software Download

The flowchart below outlines the software download procedure. Although the time taken for the entire

procedure varies depending on the size of the field bus device’s software, it will take about 20 minutes

for a one-to-one connection between a fieldbus device and download tool, and longer when multiple

field devices are connected to the fieldbus.

Figure 6-2. Flow of Software Download Procedure

Carrying out a software download leaves the PD tag, node address, and transducer block calibration

parameters that are retained in the nonvolatile memory inside the target device, but may reset other

parameters to the defaults (except a minor update that does not change the number of parameters).

Hence, where necessary, save the parameters using an engineering tool, parameter setting utility,

or the like before carrying out a software download, and then reconfigure the field device(s) after the

download. For details, see Section A1.6.

The current dissipation of the target field device increases transitorily immediately after a download

due to erasing of the FlashROM’s contents. Use a fieldbus power supply which has sufficient capacity

to cover such increases in feed current.

Upon completion of the activation, the target fieldbus device performs resetting internally, which

temporarily halts fieldbus communication and function block executions. Be especially careful about a

valve positioner; the output air pressure will fall to the minimum level (i.e., zero).

NOTE

FA0102.ai

Start download tool

Select file(s)

Select device(s)

Carry out download

Activate device(s)

Select the software file(s) you want to download.

Select the device(s) to which you want to download software.

Transmit the software to the field device(s).

Activate the device(s) to start with new software.

CAUTION