Micromod Micro-DCI: 53SL6000 Single Loop Controller Bedienungsanleitung PDF herunterladen (Seite 27)

controller powers up in the last state it was in be-

fore power was removed.

2.9.1 Power-up Sequence

The power-up sequence is as follows:

At power-up, the controller performs a power-

on self test which includes lighting all faceplate

LEDs for three seconds to show they are work-

ing.

After completing the power-on self test, status

information is presented in the dros. During

status, both of the vertical bars have five

equally spaced LEDs lit.

2a.

If the power-on self test is successful, the

dros will contain option identification

codes and the firmware revision level iden-

tification for the next three seconds as de-

scribed in Table 2-1.

Table 2-1. Controller Status Codes

dro Attribute Status Code

Top (red) Option A status

code.

0 = no options.

192 = 2DI/2DO.

193 = Single Univer-

sal Analog Input.

194 = Dual Univer-

sal Analog Input.

Middle

(green)

Option B status

code.

Bottom

(yellow)

Firmware revision

level identifier.

Code must be cross

referenced to

revision level.

2b.

If a power-on self-test database memory

error occurs, the

nrAM

error appears in

the top (red) dro and the controller halts

further operation. Return unit to for

service

After a successful power-on self test and

status presentation, the controller enters op-

erator mode, unless it was offline or executing

the controller confidence test when it was pow-

ered-down.

Offline is indicated by four equally spaced

pairs of lit LEDs in the green vertical bar.

When offline, no control is being performed

and all outputs are held at their values pre-

vious to being placed in offline mode. (For

more information about operator mode see

Section 3.2, Operator Mode; for more informa-

tion about the offline state, see Section 3.7,

Offline Display Pattern.)

Reference Section B.4.6, Exiting the Controller

Confidence Test via the Faceplate Push Buttons, if

it is suspected that the controller was executing the

controller confidence tests when it was powered-

down. Both vertical bars and all status indicator

LEDs, except the WD indicator, will be lit during the

controller confidence test execution.

53SL6000 Instruction Manual Section 2. Installation and Power-Up Procedures

2-8

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