Toshiba instruction manual Introduction to S20LP, System configuration

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1. Introduction to S20LP

1.1 System configuration

The following figure shows the typical system configuration of the S20LP.

T2N

T2N internal bus

OTR2OTR1

Station No.1

S20LP Port

(Main terminal station)

T3H

T3H

I/O bus

OTR2OTR1

Station No.2

SN325

(Back-up terminal station)

(General station)

(General station)

(General station)

OTR1

SN325

T3H

OTR2 OTR1

OTR2	OTR1	OTR2
PTLS9		External
		Loop
PCS		Device

Transmission line 1 (Loop 1) : The data is sent from OTR1 to OTR2.

Transmission line 2 (Loop 2) : The data is sent from OTR2 to OTR1.

Total number of stations	Max. 64 stations

Transmission distance	1 km (between stations)
	4 km (between stations ; connecting SBR22)
	30 km (system totla)

Scan transmission capacity	4096 words

Maximum transmission capacity	1024 words / station

Parameter setting tool	S-LS (runs on personal computer)

(Note 1) SBR22 is the long distance repeater for S20LP

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Contents T2N/T3H stations Important Information Preface Contents Introduction to S20LP System configurationT2N include of S20LP Port Station hardware∙ Overview SN325 SN325For SN325 ∙ Status LEDsS20LP port for T2N PU245N ∙ Transmission cable connectors ∙ Station number setting switches∙ Reset switch only SN325 ∙ Loader portMenu LS overview⎯ 10 ⎯ S20LP-station specifications SpecificationsS20LP system specifications Scan transmission overview Allocation and network assignment by T-PDS Setting the data send block by S-LSSettings on T-PDS Setting for data linkageStation number setting Link PDS screen example Block Send Receive ⎯ 18 ⎯ Global ⎯ 20 ⎯ Settings on S-LS ⎯ 22 ⎯ ⎯ 23 ⎯ ⎯ 24 ⎯ ∙ Start with Standby mode ∙ Scan Access∙ Scan Transmission ∙ Message Transmission∙ Target Scan Time Data linkage example ∙ Settings on T-PDS Setting on S-LS LS setting screen 2 for STN #2 Cable connections Behavior in trouble RAS function∙ Station down ∙ Transmission cable breakageDuring operation Self-diagnostic functionAt initialization at power on T2N LED indicationSN325 RAS information monitored in T2N/T3H Online map Station statusLoop map Only T2N Standby mapNumber 1-64 on the screen shows the Station number RAS information monitored on S-LSSelf Station Station No.01 Offline Select the Station Number Click the Status Display Station down information Possible error message are as followsExpanded data transfer instruction Instruction SpecificationInstruction format FunctionTransfer parameter table Parameter and construction∙ Operation Sample programRemarks Message transmission Message transmissionComputer link protocol PC link protocol∙ Send CMD Transfer parameters aStatus B TermSTS Status Meaning Detailed Information Send completion status Transfer parameters PC link protocol transmission Data writeRID Important items Status See 7.3 5 for details on bits C, D, E, and FXW/YW PC link protocol transmission Data read ⎯ 57 ⎯ SW067 Write enabled Remarks PC link protocol transmission programLength END Scan cycle Appendix⎯ 63 ⎯ PDS remote programming PDS Setup options screen